Would recommend that you do a post over at
http://forums.corvetteforum.com/c1-and-c2-corvettes/.
There is a lot more that can be wrong if you don't have an eye for it. For example, how is the birdcage? It is major work to get one out, as you can see here:
http://forums.corvetteforum.com/c1-a...free-bird.html
If you ask for someone near where the vehicle is, there is a chance someone can give you a deeply informed opinion.