Thanks for the advice guys. I can already tell you that I'm going to have to skip the really scarce backs like Drum. I just don't have the kind of money that would be required to get the scarce backs.
So I guess I'll just try to get 9 or 10 different backs and go from there. No matter what I'm excited about this set. I've got a good display idea for the Cardinal set and as soon as I get it done I'll share it with you guys.
Chris