I think the first things you should do are to make sure you know what you are in for. You are going to be spending money to turbo your car. You can either A) spend a little less $ up front, not run as good as you should, and then blow up your car and strt repairs that will cost you more money or B) spend a little bit more up front but have a good running, safe car.
Answer that and then get started. You can't expect to cut corners and not follow the project all the way through without having some consequences. So, if it were me in your shoes, I'd pick option B and then give John (Vapor) a call.