This is my solution. I laid in an additional layer of 1808 on the hull sides, then the three gunnel supports on each side with the transom box and forward casting platform bulkhead all glued in place with thickened resin and tabbed with 1808. The boxed gunnel supports will be filled with foam for additional floatation.
The hull feels very solid without the cap being attached yet. The deck is half inch, the forward casting platform will be two layers of half inch for additional rigidity.