It's a pretty basic DIY repair. Buy a piece as described, cut to same size. If you want lay the old one on top for template, Hole saw the...
If he installed acrylic that's wrong material. Depending on size look for a piece of 1/4" thick GPO3 or similar fiberglass material, Lexan could...
New anticipated landing is Burnt Store / Charlotte Harbor. Cape Coral and Ft.Myers are screwed.
I suspect that removal, cleaning, sealing as required will solve your problem. The tank is fiberglass, the plate a composite of some sort, both...
My winter home is on the Caloosahatchee, flying down Saturday to triage. Meanwhile I sit and twiddle thumbs. I suspect it will move south a bit...
Likely a sealant, you'll need a knife or something similar