Ed, Its a bit early for me to know for sure but I do expect if built with care 900kg would be achievable. I expect my floats beamed and painted will be well under 100kg each and that leaves over 700kg for main hull rig and sailing gear.
I know that the voices in my head aint real, but they have some pretty good ideas. There is no such thing as a quick fix and I've never had free lunch!
