I'm old, it's hot and not in good shape.....really weathered and rough with some minor cracking (1"-2") above the passenger door along the lower edge. The poor car was passed from soldier to soldier @ Ft Bragg for about 18 years or so before I got it in May and the top looks it.
I've looked at the overlay or pop in insert that Eckler's, Corvette central and other sell and I've also thought about painting the sucker black like the rest of the car, but I'm not sure which paint would be best suited for going over acrylic.
In the end I kinda guessed the fiberglass may be the way to go that's why I asked.