Boat plans catalog – 300 boats you can build! boatbuilding supplies & epoxy; inboard hardware; new – electrical design plans; books, dvd’s & audio. Stephen pollard aluminum designs. glen-l is proud to offer designs by stephen pollard for welded aluminum construction complete with cad files. stephen pollard is the. Clark craft offers hundreds of boat plans, design patterns and complete boat kits, and a full line of boat building supplies and accessories for the amateur boatbuilder..