Here are step by step photos of making the rolling recess. Note that a temporary bulkhead had to be installed to
hold the rear deck up until the recess was glued in place. The top of the rear bulkhead was cut off straight across
from shear to shear to support the rear of the coaming from below the recess. The bulkhead hatch became a little narrow
but is still serviceable with the sliding seat that removes for full access to the hatch.