Not cheap, but cheaper than most GT-500s:
http://cgi.ebay.com/ebaymotors/1968...4651033328QQcategoryZ6465QQrdZ1QQcmdZViewItem
... also, I see that it does not have the original factory engine, but a 1969 Ford replacement motor being a NASCAR 427 side oiler may actually be a very desirous configuration (I think Sammy Haggar's '67 GT-500 had a 427 ...).
http://cgi.ebay.com/ebaymotors/1968...4651033328QQcategoryZ6465QQrdZ1QQcmdZViewItem
... also, I see that it does not have the original factory engine, but a 1969 Ford replacement motor being a NASCAR 427 side oiler may actually be a very desirous configuration (I think Sammy Haggar's '67 GT-500 had a 427 ...).