All this response make me realize what a fantastic group ya'all are. I'm really impressed.
Gary, I already picked up some wheels at Harbor Freight. They had some smaller diameter, large width wheels, pneumatic with plastic hubs (cheap) that should work well on sand. Your axle assembly and topper lift assy. both are designs I'm looking forward to trying. I've seen quite a few Krogen's and they all look very solid and smooth riding. Many happy miles to you. We had a Nauticat 33 ketch when we were cruising but she is now out in Oregon and we're in Michigan out looking at the ice on Lake Huron today. Poor state of affairs! By the way, the only time we laid her on her side was down by New Bern when we were anchored out and a tornado went through. They do get wind down there.
The idea of screwing a block to the initial butterfly joint sound great. That was the only big worry I had come up with so far. One big question for everyone. Since epoxy is used on both inside and outside of the hull, is marine plywood (expensive and far away) required?
Thanks,
Bill