Broken off from DIY around the house to fit the laterals here, which I figured could be done at the same time as setting the keel in view of the fact it'll be curing overnight. A pair used before are re-purposed here: quarter-inch laths standing 1" (25mm) proud of the 20mm insulation board to allow for an adhesive filet.
I've left a 20mm overhang at the trailing edge to accommodate a rear spar, which with the keel will support the rudder-post.
