That is a sad tale BlackAce, but I wouldn't worry at all. CUP comes with everything I want (plus a hell lot more) and I do not feel the need to further enhance it with standalone mods. Monty takes care of that now
I remember not long ago struggling to keep up to date with my modded install, I had to back up not only the main install but hundreds of files with fixes and instructions. Then the latest MiG patch is released but you first need a franken plane you rather would not install, but you do install it because hey, I want the new MiG with pilot glasses on, but the fricking franken you do not want requires the latest buttons and then you realize the engine mod must be updated, and you do it although you do not remember what you already did and you know it will break older mods but there is no way back now, and in the end I not only wasted my evening but the main install was fubar.
That is all gone now, as huge as CUP is, I have more free space than before and I actually have now time to fly and explore! Speaking of exploring I found yesterday the Reno Air Race map in QMB and I went for a ride. So I took off and I couldn't figure out where the race track was! How disappointing, I was expecting some good chimneys and more exciting stuff but there is no race track Monty! I shall delete CUP at once!
I encourage you to give it a try again BlackAce. Unzip and move everything in order and mind only the last restore point for each module. Delete the Il2/SFS_MAPS/CUPSOUNDS.sfs. Edit your conf.ini. Do not enable any JSGME mods until you get it working. It is that easy! Good luck.