Re: Wheel fit
I know of a '69 coupe that runs Vintage Wheel Works V45s, fronts are 17x8 with 4.75" backspace and rears are 17x9.5 with 5.5" backspace. This is with stock wheelhouse dimensions (no fender rolling or mini-tubbing) and disc brakes all round, and from memory I think the ride height is lowered about 1" all round. Not sure on the tires he runs on those rims, but you would have to be real careful in section width and aspect ration to avoid rubbing the wheel opening lip.
1969 04A Van Nuys-built Z/28. Cortez Silver with dark blue interior and VE3. Sold Clippinger Chevrolet. Raced at Lions in LA.