Intermix,
As previously stated, persistance pays off, as does having b***s big enough to make a dramatic move like knocking on the door. Having said that, timing is everything, and just imagine what could happen if the day you arrived on the stoop, an FO had just flown the coop? Dubai is a long way to go though.
Have you considered instructing, banner towing or sightseeing tours to get your total up a little?
Good luck...If I were a manager and you showed up on my door with a good story, and I needed you, I'd hire you. Still got to meet insurance requirements, though, and that may be your largest obstacle.