Fyi....photography at DXB is forbidden.....unless you shoot planes 10 miles out and police does not catch you.
Check with Konstantin von Wedelstaedt. He lives in DXB, maybe he has time to show you around.
try the J.W. Marriott roof terrasse in the morning until 12 or 1pm, you can get some nice shots there, and the light is perfect! can can have some drinks up there + a little chilling and you're away from the police!