Not nearly as difficult as I had feared.
These were the last major construction jobs to be done. I had prepared the mast staves earlier. Naturally I had to get all the sawhorses nicely aligned to be sure that the mast would be straight.
First I had to round over the edges of the hull, and then fillet the joint at the base of the keel. The job took a lot of glass and resin – I had to order another 15 yards, in addition to the 50 yards that came with the kit. Naturally, a lot of sanding was involved.