Have you looked at the designs of William and John Atkin? Right time period. Lots to choose from: www.boat-links.com/Atkinco/ Maybe something...
Dave, Go to the Portland Pudgy site and email your question to Dave. The Pudgy is his baby, not mine. :) Steven
A friend of mine has designed a lifeboat/dinghy - The Portland Pudgy. He showed the prototype at the Maine Boatbuilder's Show last March and now...