Composite cruiser – the primary purpose of this design was to build a small pram style boat that was ultra-lightweight, easy and inexpensive to build, was unsinkable. Sam devlin produces a lot of plans. most of them, he makes available for anyone to build. this is where you can see his designs that are available as plans.. Powerboat designs, even those sold as kits like our new peeler skiff, must comply with stringent coast guard regulations. the coast guard checks the designs in a.