The ideas are fine, but the actual converting it to a Computer case is saomething entirely different. Maybe there's some thing available at 1:6 scale?
Also, since this is a car theme mod, I would love a tape deck or AM/FM tuner in one of the bays. The only tape deck I saw was white and I doubt that cassettes were in the 1972 cars anyway. Any AM/FM tuners available for a PC bay?