Anyone ever make something out of fiberglass from scratch? I need some stock tanks that will fit in an odd space and was thinking about making them out of plywood lined with fiberglass. It seems like the process is simple enough once I figure out what kind of cloth and resin i need. Does that sound feasible? Also, are 90 degree corners OK or do I have to put a radius on every corner?

I have also considered making one plywood mold and making them entirely out of fiberglass but I figured if I left it in the plywood shell I wouldn't have to worry about them breaking or cracking as much.