Possible racing beach yawl hull
A nice solid hull, peewit. I assume the heavy looking extended keel line is to save having an extra fin keel. I'm sure it should have been a clinker built hull to be a beach yawl. There was an article on Yarmouth Beach Yawls in an issue of Model maker and Model Boats magazine. I had it as a kid, but no longer, alas. But I remember it being a rather large, slightly tubby boat with many clinker strakes, but still a very nice shape, transom sterned.
I'd simply build that hull up as a yawl anyway and see how she sails. If she needs more ballast, then add a blade or fin and a bulb.
Good to see a non military sailing vessel being done.
Martin