Ahh -- another boat builder! I'll second Gerry's ref to the inshoreboats - its a solid looking machine - and he builds boats!
Doug (Isfoils) was building a similar machine as I recall - used a lota concrete to stabilize - so consider that too. Seems he has slipped from the site - but checks in occasionaly.
I'm planning on a 4x8 machine similar to the inshore boat style - might stand against the wall however.
All this when I get back - gotta build some interior panels for a nav sta refurb - and it seems like the way to go. Your resolution to 0.01 ought to be close enuf - fairing and fitting with resin?
BTW - welcome aboard! (and you're not nuts...but start smaller and expand)
Jim