A 4-speed and interior console swap are relatively easy to do. The nice thing about this car is it doesn't have a different hood, grille, tail lights, or trim specific to the high performance model. Like say a Chevelle SS or GTO. Also I was looking at the hardtop roofline and the AMT '65 GTO will probably work, as others have mentioned. I am glad to see this kit back, I had a nice unbuilt convertible and sold it a few years ago.