In this pic we have the whole messy puzzle, made up of eight oversized pieces; none of them lying particularly flat, but fitting at the important edges nonetheless. I found it very helpful to have it all laid out like this, to consider the seating ply as one shape or surface. The curves were drawn freehand on one side of the centreline, having established the right minimum overhangs, and then the shapes were cut and transferred from the cut pieces to their opposite pieces.
Below the shapes are cut and ready for the fitting of the doublers. The sheeting has all been marked for orientation, and will be put aside until the planking is done.
The brace that goes across the top of bulkhead 4, at the front of the centreboard case is temporary. That space will be open, and very useful when complete.