I have always loved Mustangs and have begun a serious search for a 1967 or earlier fastback for restoration. I want to do a full restore with some minor performance modifications. Problem I have is I can't seem to get comfortable with what these cars are worth. Matching #'s and rare collector's issues are'nt important to me because I will be doing somewhat of a modified restoration. Can anyone give me some advice on becoming more informed about buying a project car.