I usually avoid these questions because there are so many factors involved that end up being based on opinion. What you need to do is decide exactly what you want, and start figuring out what it will take to get there. Then come up with costs, and start saving your money. I agree with
Unit, but I also think that putting a cam and heads on your engine would be a waste of time, too. Sorry. You just need to envision the finished product, and then map out how to get there.
Or you could always marry some rich chick.
Take care,
-Chris