[mr0077]

CW, man that question could be/has been the subject of books, and many posts here on CC...depends on what you want when you finish, how much ya got to spend, maybe where you live, how good a mechanic you are, etc., etc., etc. You can be looking at maybe low 20K to above $60K...you're on the right track, do a lot of research, go to some of the local club meets and make up your mind. Kountzecobra is close to you, and he says there are a couple other cobra owners in the area, email him and take a look at his, he's got a very nice example.
Lotsa luck