Alain,

I think Rolf gives best advice.

I understand that Phill Brander is also working on a 28 foot cruiser/racer design based on his early Blade catamaran designs. I personally expect this to be a tortured ply design as well (maybe with an external layer of glass). This might of be of interest to you later.

In this line of thinking building the smaller timber-epoxy Blade F16 may well be a good test case before starting on the timber epoxy 28 footer.

Otherwise, when looking for a simper project then ask Phill about the Blade 14 and see what he says.

Just an idea.

Wouter