Have you considered Hilton? There are two great HH properties in Maldives: the Conrad & the Beach House. Due to the ongoing award booking glitch, the Beach House is showing no award availability, but Conrad has award room available for the 9-day period you mentioned. I'd suggest you to get the HH AMEX surpass which gives 40K HH pts plus 1 year HH gold, then transfer 153k AA miles to 255k HH pts, that will give you total of 340k HH pts, enough for a 9-night award at the Conrad (2 4-night AXON7 awards, 145k pts each, plus 1 night for 50K).