Haha cheers Wags that makes me feel a whole lot better!
If you look at the map then Grand Cayman is probably as far away from you as you could possibly get mate. You'd either have to go via west coast US or Europe so I think it would take you two days and probably AUS$3-4000 just to get there. Bummer If you talk to the organizers they maybe able to come up with a swap with someone? Just an idea.
Maybe he could swap you for your flash light !