Jason,
Tally Ho! is of the same vintage and construction. Although I have not had significant bulwark problems, I did have tremendous rot problems in the areas surrounding my cockpit lockers. Most of the beams, carlins and decking was replaced. I can, without hesitation recommend shipwright, Craig Staake in Seattle for your project. He is a master craftsman and is very familiar with the Cape George Cutters. Feel free to contact me for his number. slbrown@seattleschools.org.
You can also refer to my pics in the gallery to get an idea of the quality of his work
Best wishes for your project,
Scott