I'll start with a finished cockpit, before I take out the old one. Template the base of the coamings and the cabin-back, build the benches, bridge deck, cockpit well out of plywood, glass, add teak decking, etc. When that is completely finished(1-2 winters?), THEN I'll rip out the old one. That sounds like more fun and less daunting than starting at .the beginning. The original cockpit is giving out. It's the one area Of the design I think I could most improve.