I would choose someone else.
I also would still consider flying in a photographer and having them stay at your resort. It always sounds expensive... but really it's not. You are paying $1100 for 2 hours plus TTD. A flight and three night stay at your hotel for one person is only $1192. Now... yes, it is slightly more. However, then that photographer could also do your wedding coverage, group activities, AND the TTD photos. You would have WAY more coverage, and buying the disc of all the edited photos will probably be a lot cheaper than the resort photographer offers (I honestly don't know the Moon Palace prices, so I can't 100% gaurantee that).
So, what I would recommend, is contacting some US photographers that you like. Inquire about destination weddings. I know there are a ton (a lot on this board even) who will do destination weddings simply for the cost of the trip (again, around $1200). You just need to ask!