One pair of seat cleats between frames three and four
And a pair of cleats that run from chine to trunk, along the inside face of frame two.
I will fit some flotation between the first pair, and then begin fitting the thwart halves.
I wish the directions had stated/I thought to fit the thwart halves before fastening gunwales and chines. They would have been excellent templates, and while I’m not worried about things not being perfect, it’s going to time consuming and arduous trimming the halves to fit.
Proto-boat indeed…
