The great alaskan is a very versatile inshore/offshore powerboat with a seaworthy semi-dory style hull. these fiberglass/wood boat plans give the builder. 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. Atkin & co boat plans, boat designs, boat building, william atkin, john atkin, billy atkin, small boats, good boats.