Intro: sawfish, an unsinkable, lightweight, foam kayak (23 lbs). free diy kayak plans, the hardware store boat. do you really want a kayak? want one so bad you can. B.c.a. demco’s boat plans catalog, diy boats: rowing boats, canoes, kayaks, dinghies, cruisers, sailboats, motor/power boats, amateur boat building plans catalog. California ski/race boat: semi-v hull design, 3 blade prop, trim tabs with controls on the steeling wheel; 502 blown chevrolet engine with a v-drive.