Specializes in stitch and glue, epoxy/wood composite designs for sailboats suitable for home builders. also offers a boat building video and book.. The john d. bosler devlin boat is for sale. this pre-owned 42 foot trawler, and is a one-off design that benefits from sam devlin’s unique stitch and glue,. Description. length – 14’6" beam – 8’1" many micro trawler owners also think she is revolutionizing the travel trailer industry as well, "stitch and glue",.