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There are some very knowledgeable folks there... be sure to say what year your Vette is as there are different fixes depending on what year (glass or SMC construction).
I believe that makes it SMC rather than fiberglass construction. Could be some new products out there that would make your repairs stronger/longer lasting. Again, click the link in my previous post and I think you'll find some answers.
I'm in the "learning" curve myself but there are some experts in the Body/Paint Forum that have been doing body work on Vettes for years.