Free plans; home » power boats » power boats 17′ to 20′ classic 17 [tx18] inverted vee flats boat, hickman sled type. plans format 2: instant download. Complete free plans package i need a flat bottom dolly boat ben crawshaw’s book about cruising the mediterranean in a craft made using free boat plans.. Build a flat bottom jon boat plans . these plans are to build a flat bottom fishing jon boat. fisherman who like to work the shallow backwaters and weed.