[David Pozzi]

Look around the net and see if there is a car done the way you want, copy that guy. Ideally it's someone near you that can answer questions. Lots of us Camaro guys copy Mark Stielow in one way or another. But there are budget builds around too.
There are lots of vendors out there that have good parts these days. Look for quality and long life and a company who will help you out if there is a problem. Watch out for vendors who take your money and don't deliver.
It's best to get a fairly good car and add goodies to it as you go. If you get a car that doesn't run and have to work on it part time for years and years before you can even drive it, the project will be unrewarding and you are more likely to get bored with it. Don't buy parts until you need them unless they are used bargans. Often you buy a part and don't really need it for two or three years, then a new improved part comes out and you are stuck with the old version, or you sell it off for half price and buy the new one. I bought a Richmond trans, then wanted a T56 Magnum when they came out.