Here is some advice for you: When you get tired of having an unreliable car and calling your friends to pick you up from the side of the highway, ask yourself if spending all this time and money on modifications is really worth the hassle. Hopefully you'll come to the conclusion that it isn't. Buy a stock (unmodified) car that is as fast as you can afford. After you do that and you have more money to waste, buy a beater and then modify it. At least you'll still have your dependable daily transportation.

Good luck.