After some fiddling with the block plane stretched shell now completed.
My modified plans include under counter storage, so transom becomes part of hatch. When I glass the shell my cloth will be carried over from hatch to transom in 1 continuous piece so I needed a more rounded profile on the transition piece. I chose to use a nice piece of solid Honduras Mahogany, fileted to accept leading edges of hatch and transom. Joint is then reinforced with tape and epoxy.
Transition pieces still to be shaped and sanded.
Hatch opening above quarter panels requires cutting mahogany transition piece in 1/2, angled down for drainage.
Next to galley and counter design: decided on Baltic Birch cabinets for contrast and laminate top for durability. Here are counter and dividers dry fitted (dadoes) and set up with Dometic 12V fridge and sink/burner combo.
Now on to installation of counter, lower bulkhead and dividers into shell, then on to floor.