So I wanna do a top swap on my 03 grand prix gt. Instead of buying a whole kit for $1300, could I just buy a junky second grand prix gtp for $700 and take the supercharger and all other needed parts from there and put it right into my 03 gt? Or would that be a bad idea considering that junk car would have like 200K miles on it? I want to keep driving my 03 for MANY years to come and don't wanna have to spend any more money than I have to. It currently has 76K miles on it. Short term I'm thinking buy the junk second car, but long term, I don't know. Your thoughts?