The PC was a great investment for me. I strongly recommend it.
You may want to have a realistic discussion with your Chevelle about the condition of her paint.
If it is original then that's 32+ years of use. If it has been resprayed then you'll need to evaluate the quality. I say this because you'll be able to improve the finish quite significantly, however, you might want to check your expectations a bit as unless you paint is in pretty fine condition it will be tough getting a finish that compares to some of the newer cars you see here.
Don't let me dissuade you as there are several older cars here that look amazing. I just wanted to make a point to be realistic about what you have, what its potential for improvement is and what your expectations are before you spend your hard earned money.
Good luck,
Russ