After figuring out how to clamp seatbrackets 6 " below the gunwale and transom, woodflour filled epoxy was smeared and clamped betweet the inside hull and the plywood blocks. These will function to carry the downward force of the stern seat. Also the bow deck will have support to brace itself to. No mechanical fasteners were used. I assume the epoxy bond is strong enough. The panels still need to be epoxied before they can be fitted.
Looked at the Eider design, a new one, of Sam Devlin today... What a beauty. Will it be my next boat? She seems perfect for me. Both to sail and to build next.