I'm one of the few that says buy it, and just do bolt-on mods only
IMHO, stock musclecar interiors are almost always nicer looking than anything custom, and that car has the potential to look very cool "stock" looking, but lowered a bit, and with some nice 17" wheels.
It's too cool of a car in stock form to hack up and build a "trendy" looking car that will undoubtedly look dated in 10 years, which is what happens with nearly all over-the-top custom car builds. The overdone custom interiors and 20"+ wheels will be the velour tuck 'n roll, and Keystone classics of tomorrow