Thanks for the pics! wow, that bracing looks BEEFY! I've been looking around for this kind of info, because I'll be doing similar stuff in a couple years. My body is at least as rough as yours.
One thing I noticed is you don't have a brace directly between the doors. Most systems I've seen have something there. It's probably much less likely to bend in the rear door area than from front to back, but are you planning on adding something there?
Also, did you get measurements on what your car is supposed to be from the factory and push it to that shape? Or did you just try to maintain the existing shape? If you got measurements, where did you find them?