I Decided on 11 foot by 30 in , Mal style , I Bought a rectangular block of SL Polystyrene and Terry (trimaran) Vosper has shaped it for me after putting in a thin stringer , we glassed the rails with 2 layers of 6oz glass(epoxy of course) and will try to vacuum bag the wood veneer over 2 oz glass tomorrow. I have added some photos of where we are at . Lats