Motor boat designs & plans for motor boats 21′ to 30′ in length back to motor boats main page: study plans are available for some of these designs – remember. Boat plans and boat kits for power and designers and builders of luxury motor eskimo tom’s fine wood watercraft offers plans, custom design and boat. Wooden boat plans and kits. david payne yacht design from a 5 foot tender to motor launches and sailing yachts. they have kayaks and rowing skiffs as well..