We have power boat building designs of all types such as power cats, cruisers, and more. view jon boat deck plans & boat cabin plans for more details.. Berny marsden’s stitch and glue w kayak – united kingdom. this is the latest diy w kayak project – it’s the first diy design allowing to take the boat apart.. Boat plans: whisp, the ultralight 16′ 68 lb. multi-purpose row sail power boat for lapped plywood construction. plans prices and ordering:click here.