Hello,
I installed this guide following all instructions and found some kind of issue with the stewieai ini file that comes with the STEP CR patch mod. When I load the step CR patch mod, the game will CTD before even loading to the main menu. When I remove the stewieai.ini from the STEPCR folder, the game boots to menu just fine.
I manually added the ini file from the stewieai mod page into the nvse folder of the StepCR mod - the game booted
I went through and manually enabled certain options and found that the game would crash before menu when "bRestore2Hotkey = 1". Setting it back to 0 stopped the crashing. I don't know if it has something to do with my setup but anyone having the same problem could try and see if this fixes it.