Here's the original link. Pretty solid base and he keeps on updating it so read this link rather than my outdated review.
This document will provide you with installation order instructions for each mod as well as special specific notes for mods that need them, for future documentation. Write '- DONE' at the end of each line like a checklist so you don't get confused, like this : "15. Install QZ Easy Menus - DONE".
To be used with all the mods listed from here : http://pastebin.com/6naqzMi8
0. Install Oblivion GOTY Deluxe Edition : http://kat.cr/the-elder-scrolls-iv-oblivion-game-of-the-year-deluxe-www-t9612309.html (comes with Shivering Isles and all the official plug-ins, but I only use the Vile Lair, Orrery, Knights of the Nine, Mehrune's Razor, and Spell Tomes), start the game to make sure it runs/generates an .ini file. Backup this entire unmodded installation (the Oblivion folder containing your Data/etc folders) just in case.
1. Install OBSE (Oblivion Script Extender, required for many good mods)
2. Install BOSS (Better Oblivion Sorting Software, for sorting your Load Order properly)
3. Install Wrye Bash (For BAIN installations, Bashed Patches, and almost every other mod unless noted otherwise)
4. Install OBMM (Oblivion Mod Manager, for .OMOD installations)
5. Install TES4Edit (For cleaning dirty mods, we'll do this at the end)
6. Install the 4GB Patch, apply it to the OBSE_Loader.exe, Oblivion.exe, and OblivionLauncher.exe.
7. Use the obse_loader.exe to launch the game from now on. Start the game to make sure that it runs.
=====***** After every mod install from now on: Check the mod page for detailed install instructions, install it, run BOSS, Rebuild the Bashed Patch, and start the game to make sure that it runs! If you get an immediate CTD, you did something wrong! *****=====
8. Install the Unofficial Oblivion Patch
9. Install the Unofficial Shivering Isles Patch
10. Install the Unofficial Official DLCs Patches (Vile Lair, Orrery, KotN, Mehrune's Razor, Spell Tomes) and delete the .esps for DLCs that aren't installed or you'll CTD when you launch the game
11. Install the following OBSE Plugins (manually move them to the Data/obse/plugins folder):
- Oblivion Stutter Remover (open its .ini and change bReplaceHeap to 1)
- Trifle
- MenuQue
- ConScribe
- Elys Universal Silent Voice
- Elys Skill Uncapper
- Pluggy
- ShadeMe+Starter ini's
12. Install DarkUI'd DarN (via OBMM)
You could also make your own recolor, in Oblivion general days some savvy people re-textured the backdrops themselves. DarnUI vanilla is also the best, just saying.
13. Install DarNifiedUI Config Addon
14. Install Atmospheric DarkUI Loading Screens (via OBMM)
- These mods just making loading slower and you should be playing Oblivion on an SSD since it's 2015. I wouldn't recommend using this.
15. Install QZ Easy Menus
- Make sure you configure this, here is my .ini if you want to drag and drop.
16. Install Coloured Enemy Health (manual)
17. Install Dialog TweaksFixesAndRestorations
18. Install Expanded Greetings (manual)
19. Install Really Textured Normal Maps (all three parts)
- I highly advise against installing the entirety of this mod, it looks really bad on architecture and terrain.
20. Install Qarl's Texture Pack 3 + The fix from the Unofficial Oblivion Patch page
21. Install Bomret's Shivering Isles Texture Pack
22. Install Unique Landscapes Compilation
23. Install Open Cities Reborn
- Most will agree that Better Cities is superior to Open Cities Reborn, there's even an "Open" component to the mod. There are other city overhauls as well, you can find some of them here.
24. Install Let The People Drink
25. Install Kvatch Rebuilt
26. Install Patches for current mods:
- Open Cities for KotN
- Open Cities for Kvatch Rebuilt
- Open Cities for Unique Landscapes
- Unique Landscapes for Kvatch Rebuilt
27. Install Detailed Terrain (via OBMM), Beta2 first, then SI pack, then UL pack, then ShaderPatch, overwrite all files as you install
28. Install Enhanced Vegetation (via OBMM), then Plugins (110% size), then Darker Trunks (Wrye for Darker Trunks)
- 150% trees is the best just saying.
29. Instally LowPoly Grass (manual)
30. Install Dark Green Glass Armour
31. Install Insanity's Ebony Sword Replacer (manual)
32. Install AwesomeSauce Reflection Maps (manual)
33. Install Main Menu Video Replacement Scenery (manual)
34. Install Oblivion Reloaded
- OBGE is better at graphics than OR but OR has access to some neat features and it's easier to install\ but harder to configure.
35. Install Night Eye Shader Replacement (Edge Detection, via OBMM)
36. Install Weather-All Natural
- I always confingure the .ini too, some of the default settings suck.
37. Install Immersive Interiors + ii4Bravil&Leyawiin
38. Install HG Eyecandy Body (via OBMM), then HiRes HGEC Textures (via its InstallTool.exe), then HGEC NudeBeastFix Textures (manual)
39. Install EVE HGEC Conversions
- There are dozens of other model replacers you can get, I personally never liked this one.
40. Install Robert's Male Body
41. Install Oblivion Character Overhaul v1, then HGEC OCO textures / Robert's OCO textures (manual)
- There are other NPC replacers, OCO 1 or 2 both suffer from sameface.
42. Install Oblivion Stereo Sound Overhaul (manual)
43. Install Better Music System +Shivering Isles version +hotfix (manual)
This is my BMS folder if you want it.
44. Install Put It In Its Place-Enhanced Grabbing (via OBMM)
45. Install Better Dark Brotherhood Sanctuary
46. Install Better Dungeons (manual)
47. Install Chorrol Arborwatch Basement Addon (manual)
48. Install Alternate Start Arrive By Ship (manual)
49. Install Oscuro's Oblivion Overhaul v136 (manual)
50. Install the OOO Equipment Addon, then Patch 1.11, then Patch 1.21, then EVE HGEC for OOO (manual, let EVE overwrite files)
51. Install Patches for OOO:
- Unique Landscapes OOO Patches (manual)
- Open Cities Reborn OOO Patch (manual)
- EVE HGEC Conversions for OOO
52. Install Supreme Magicka (via OBMM)
53. Install Vanilla Combat Enhanced + Archery Rebalance (manual)
Worth noting that there are tons of other combat overhauls.
54. Install More Effective Enchantments (via OBMM) and Useful Orrery Buffs (manual)
55. Install Maskar's Oblivion Overhaul v4.6.3 (via OBMM)
56. Install A Brotherhood Renewed
57. Install Mannimarco Revisited (manual), then the OOO esp (manual) then overwrite the main esp with Update esp (manual)
58. Install Medieval Oblivion Balance System-MOBS AKA OMOBS with DLC tweaks too
59. Install Fighter's Guild Quests, then Mage's Guild Quests, then Guild Advancement, then xULsnowdale Fighter's Guild Quests Patch (manual)
60. Install MOBSification of MODS (for Fighter's Guild Quests, Mage's Guild Quests, and Kvatch Rebuilt, via Bashed Patch merge)
61. Install Realistic Leveling (via OBMM)
62. Install TES4LL, run tes4ll_midres_bat, then tes4ll_normalmaps.bat, then tes4ll_qlod.bat
63. Install TES4LODGEN/run tes4lodgen.exe, then install RAEVWD + QTP3/Bomret texture pack versions for it, rerun tes4lodgen.exe
64. Install Animated Window Lighting System-AWLS
65. Install Dynamic Map (via OBMM)
66. Install Map Marker Overhaul (via OBMM)
67. Backup the current modded Oblivion installation, just in case.
68. Use TES4Edit to clean every Dirty mod that BOSS points out (for me it was just 4 of the DLCs)
69. Tweak the Bashed Patch and Oblivion.ini (gameplay edits, no startup movies/border regions, slightly zoomed out chat camera, etc)