[ElBichoMalo]

I don't think this is what you are looking for, esp. being in SC, but I am putting this here for future reference for those using the search feature. I really had a struggle to find different suppliers for the fiberglass oval type that doubles as a leaning post. Here is the fruit of my labor, all in the Tampa Bay Florida area:

Quality T-Tops (Tarpon Springs): Uses the old Dorado molds, nice and with a cushion for a fair price.
Hammerhead Livewell (Tampa): Guy has rebuilt and owns SeaCrafts. A bit pricey.
Sanchez Bros (Ruskin?): Available at TA Mahoneys as well.
Of course, there are others in other areas and at very different price points, but this should be a good starting point for anyone in the area.