If there is someplace specific you want, ask for it!
We really wanted to have our ceremony in the Library at the Adventurers Club, so we asked if that would be possible (this was before the closing of Pleasure Island was announced, of course). They had to get back to us, but in the end it was less expensive that the Wedding Pavillion and we got to have our ceremony in a place that had a very special meaning to us.
So go for it! The worst that can happen is they tell you it's not possible. The best that can happen is you get the location of your dreams.