Interesting!....
Outstanding work throughout and seems very well thought out.
The thing that I would do different would be the rear drive axle treatment. From an engineering point of view, the independent rear suspension is cool. But he has to take fairly extreme steps to limit camber change of the wide tires, plus the axles are very short. From a practical standpoint if I was doing it, I would probably go with the ubiquitous Ford 9 inch rear end. That is a pretty sure way to do away with camber change, and might be a bit simpler to build.
But, I did not build it. It represents the owner's wishes/desires/vision and that is cool. Great car!
Ciao,