Graham,
just out of curiosity, did you decide to go to Tasmania for the Tawe Nunnugah and Wooden Boat Festival next year. A couple of WA Old Gaffers are going over for the festival, one with a Francois Vivier "Jewell" he is in the process of completing an plans to show there. The other going boatless. At present they are both owners of Ougthred Caledonia and Ness Yawls respectively.
Hope you make it, it sounds like a great event.