The notches and camber are cut from the front and back pieces, and they're almost ready to be installed. I'm using a pile of drywall screws and epoxy to bond them to the skin. Normally, I would use a proper wood screw but in this case I think the flat head of the drywall screw will work better on the thin meranti. I'm using Interlux Epiglass for an epoxy with thickeners to form a fillet on the inside of the end pieces.