Izzy's suggestion is a good one: about a check-list I mean to say! I think that she's got the right idea: not stressing out at all about the location, unless, of course, you're hoping for a door to open to a particular place- which is fine, of course, although - well... Again, try not to stress out too much if the location you hope for doesn't pop up in time for the wedding. I mean, there are lots of things to stress out about, with wedding planning... I should know, given that the Island actually gave me my second wedding! Heh.... Sorry!
But for serious: just plan it out like a really great party and don't even think of the wedding aspect, since you said you already have the rings, of course, and the dress - well, that's just trappings, really...