Forms will be used to measure/hold maybe bend a little the aluminum panels against. It's all new to me, but, shape the aluminum, pound it, hold it against the form, maybe give it a good bend, pound it some more, grind on the edges, make'm line up. The pounding will be on the shot bag. Got a planisher to smooth out hammer marks. Tomorrow will add missing front end to plaster plug, add a little more around edges, and fiberglass it. Important to get the bottom right to clear all the stuff/coils/brake res./etc. It's something that has always looked near impossible, shaping metal with a hammer into something functional. CAn't imagine paying somebody to do this. Tedious already. Maybe the whole attempt is a bust, but what the hay, ya never know until you try. Just pulling the plug was way cool. The bottom of my tank, who'd a thunk it. All forms not stock.