Eric,

In answer to your question about keeping the boat down on the beach...

You should never leave a 4.9 unattended and rigged on the beach if there's any sort of breeze. The mast on these boats is active sail area and even with the sail down they will blow over. I know of a couple of people with dents in the side of their masts. If you have to leave your boat you should drop the mast. All Aussie Taipan sailors will drop their masts overnight at regattas.

Regards,

Rob

P.S. I'm still looking at getting my trailer design to you but my camera (film not digital) has died and I'm not much of a drawer.