You might be interested in a boat builder by the name of Allen Farrell. He and his wife Sharie built many boats using hand tools and mostly drift scavenged on the high tide. I was lucky enough to know them because we lived on the same island. Amazing people, beautiful boats. There are a couple of books about them "Salt on the Wind" by Dan Rubin and another book by Dag Goering. The last boat was a beautiful Chinese Junk called China Cloud. Lots of boat plans in those books, including the dory that was widely built by the locals. Writing this makes me cry. I miss seeing the China Cloud under sail or peacefully at rest in Cocktail Cove. Alan and Sharie have both died. Good luck with your boat building.