after watching the movie BULLITT...I'm thinking of getting a 68 fastback GT with a 390 as a week end car...as I am really new to classic mustangs but not to mustangs (I owned a 98GT and now I have a 01GT) I was wondering if you guys can give me tips on where to find one and how much $$ are we talking...what are the classic mistakes a newbie buyer has to be aware of..?..thanks !!!!