Mustang Unibody Diagram/Photo

I am considering ( ) an extensive restoration, including replacing frame rails, floors, plus removal of shock towers and installation of an aftermarket front suspension (R&C, Heidt ?). Aside from advice on how crazy it is, I would like some suggestions: (1) Where can I find a diagram or large photo(s) of the unibody as seen from below, with all the components labeled or described. (2) Suggest a book (or books) with instructions on major rust repair. (3) I don't plan to race my Mustang but I would like it to handle and not flex (too much). What chassis additions would you suggest ? Rear coils ? Chassis stiffener ? Engine bay stiffener (without using shock towers) ?
Thanks in advance,
Hipobuzz