EDIT: I am a pretty big moron. Missed one mod I was gonna try using. The mod that allows the settings of DarnUI to stick between sessions. Disabled, game works fine.
Now I checked four times for any missing Masters, nothing was missing. I removed the mods I had installed between the last time it worked and the CTDs on start up. Nothing. No conflicts I can really see either, patch is bashed properly, the same way I got a 200 plugin modded set up running perfectly fine years ago, on a much much less powerful computer. Nothing helps. I tried RAEVWD, figured it could be it, removed it, redid LODgen, nothing I do works. Deleted the folder in documents and relaunched the game, nothing does it.
My load order, Wrye Bash is saying every master is accounted for for every file, and I checked four times manually as well.
00 Oblivion.esm01 Fundament.esm [Version ision]02 Unofficial Oblivion Patch.esp [Version 3.4.5]03 UOPS Additional Changes.esp04 UOP Vampire Aging & Face Fix.esp [Version 1.0.0]05 Oblivion Citadel Door Fix.esp06 DLCShiveringIsles.esp07 Unofficial Shivering Isles Patch.esp [Version 1.5.3]++ USIPS Additional Changes.esp08 Enhanced Water v2.0 HD.esp++ Enhanced Water v2.0 HD - SI Addon.esp [Version 0.2]09 Camping.esp0A DarNifiedUI Config Addon.esp0B Enhanced Hotkeys.esp [Version 2.3.1]0C DLCHorseArmor.esp0D DLCHorseArmor - Unofficial Patch.esp [Version 1.0.8]0E DLCOrrery.esp0F DLCOrrery - Unofficial Patch.esp [Version 1.0.5]10 DLCVileLair.esp11 DLCVileLair - Unofficial Patch.esp [Version 1.0.9]12 DLCMehrunesRazor.esp13 DLCMehrunesRazor - Unofficial Patch.esp [Version 1.0.6]14 DLCSpellTomes.esp++ DLCSpellTomes - Unofficial Patch.esp [Version 1.0.1]** EVE_StockEquipmentReplacer.esp15 DLCThievesDen.esp16 DLCThievesDen - Unofficial Patch.esp [Version 1.0.11]17 DLCThievesDen - Unofficial Patch - SSSB.esp [Version 1.0.11]18 Kvatch Rebuilt.esp [Version 3.0]19 DLCBattlehornCastle.esp1A DLCBattlehornCastle - Unofficial Patch.esp [Version 1.0.8]1B DLCFrostcrag.esp1C DLCFrostcrag - Unofficial Patch.esp [Version 1.0.8]1D Knights.esp1E Knights - Unofficial Patch.esp [Version 1.1.3]** EVE_KnightsoftheNine.esp1F EVE_ShiveringIslesEasterEggs.esp++ Lush & Gaudy Lava.esp++ Lush & Gaudy Oblivion Weather.esp20 Alternative Beginnings.esp [Version 1.4.1]21 Basic Primary Needs.esp [Version 6.3]22 Basic Personal Hygiene.esp [Version 3.0]23 SM Combat Hide.esp [Version 1.2]24 Enhanced Grabbing.esp [Version 0.5]25 Bundlement.esp [Version ision]26 Minionz.esp++ EVE_KhajiitFix.esp27 Oblivion_Character_Overhaul.esp [Version 2.0]++ DLCHorseArmor OCOv2 patch.esp28 HUD Status Bars.esp [Version 5.3.2]++ nu_dwarven_f_cuirass.esp29 SM Plugin Refurbish(Merged).esp [Version 1.30]2A Bashed Patch, 0.esp