I’ve decided to make the plans for my stitch & glue guillemot available to internet users as "share ware". if you end up building this boat please send me a. Welcome to spira international home-built boat plans. spira international offers a wide variety of different power, rowing, and sailing skiffs, dories, and other boat. Instant access to 518 different plans – from small wooden boat plans to large sailboat plans – free boat plans.