Day 1 - Starting the mold and the back

I cut out half of the back from the plans with a scalpel.
I traced the outline onto a piece of plywood
I cut the plywood with a jigsaw.

I smoothed the edges with a spindle sander and a disk sander and then checked that it matched the plans.

I used this as a template to draw the outline on the back wood.

I cut around the outline about 12mm outside the line.

I glued on the centre seam and clamped it down against a piece of curved wood.