The pic in the bottom middle shows the results of my frustration yesterday. I poured some two part foam in to drain to the bottom of the engine mount tray to give it support from underneath and to lock it in. I put a 45 pound weight on it flat and went to eat lunch. When I came back the damn foam had pushed up the tray about an inch on the front corner. The 45 pound weight did nothing to prevent this. I had to cut it out some so I could undermine the foam out from underneath it and then I poured some more foam in there with two 45 pound weights laying straight up so all the weight was there. It worked.
I finished fiberglassing the bulkhead, inserts, and driveshaft tube. I also installed the pump shoe.
Some carbon on the sides now and then it's time to put all the tubes back in the tray and start filling it with polystyrene.