Designing a fast open deck catamaran

Considering what's going on in my corner of the world I'm more leaning towards building a plywood cat. There is a significant chance a war can break out with Russia trying to invade Baltic countries in next few years and if that happens and the project has to be abandoned at basic empty hull stage at least it will not be terribly costly loss compared to foam, glass, carbon proa build. Local birch ply, pine, spruce and some other local woods are cheap compared to composites. Before starting to add rig, engine and sail handling hardware epoxy is only expensive component, but it is needed in smaller amounts than if building purely composite structure.