Hey Bob, the Camaro clip is definitely the way to go. You'll probably end up with a mid 70's donor as they are pretty plentious, 77-80 or so. Prices will vary with where you live, how plenteous they are in your area and if you know anybody who owns a boneyard (that's the best).
Follow this link to a vid on installing the clip, it's a really good tape, I bought it and have watched it, very helpful.
http://brothersonlinestore.com/prodi...number=VIDEO59
Have fun with the '57!
