Imagine this as a way to build a house you bolt the moulds together and when its ready a truck drops by and pours your house in a day then add your skins

I guess you could prefab it as well be Light weight as well for transport

you guys can stay in the bowl never been in it don't want to

you could just leave the lid of your freeze it you got a little hot

Look up ri-tek they make similar to what your talking about
It's two sheets of fibro joined together by brackets about 100mm apart or so you join all together to form internal and external walls with windows and doorways cut out. Have all conduit in place for electricity. then fill with concrete, render the outside walls and plaster up the inside walls and your done. Heaps of them at Hamilton island and other remote location and cyclone proof

southace said..
Just finish your boat HG02 and stop trying to re-event the wheel!