[ACBill]

It may be just me, but it almost looks as if that has a longer wheelbase than the majority of replicas? Perhaps to suit the Vette chassis?
There was a company I believe that was called Classic, that had an extended wheel base roadster. I don't know if they still exist today.

Depending on where the damage is on you car, you might be able to "splice" in a body section from a different manufacture. You may even be able to put out some feelers, for a body section, from someone who has an already damaged body, that they are willing to chop up. This has been done before!