I have read many post on this site since I have joined. I run across several talking about a front clip swith using either a camaro or mustangII clip. What years will work and what can I expect to pay for something like this?

camaro and nova subframes are fairly common around here, you could pick one up anywhere from 100-250 complete. mustang 2 stuff you are better off buying new as they are readily available and have been made extremely affordable.