The tarp thing over the boom with some bungies or cords would be my choise, but the bug netting I think would be a pain in the _ss. I say take the bug juice. Man, this sounds like a great trip, wish I were going! So you will be on salt water? Mabe the water filter won't work for you? Hydrate or die! And one last thing! 450 lbs, four people? Are you pygmies?

Chuck