David, At the risk of sounding like a broken record, I plead the case for a LONG barrel. The bore and profile would probably be 20 bore and up ,with a nice wide breech. I really feel like too many fowlers today are built with too short barrels. I understand that people build what they want and, that is fine , that`s what they should do . My own personal preference is towards the nicely shaped , graceful , long barreled fowlers , 48 inch and UP barrel length. After seeing your work , I am sure that you will do a bang up job no matter your choice , I`m just pulling for the LONG barrel . JMHO Nate