Specmar inc (previously specialty marine contractors) is an aluminum boat design, lofting, and kt company. we have a large product line including aluminum drift boats. Looking for "towboat kits? there’s only a few kits to choose from and also a small number of "basic hull – kits" too. and there are sets of plans from. Plans for building your own wooden canoe from scratch using the stitch-and-glue or cedar-strip method..