The Leclerc EAU is, as far as I can make it, a slightly different beast, with new side skirts and a number of new equipment that give the vehicle a different appearance from its French brother. I have a couple of pics showing French tanks in Qatar, in manoeuvres, with a sand/dark green (black?) camo, but I'm not sure if that's the one used by the UAE forces. The UAE Leclercs are Serie 1 machines I think, and the Revell kit is a Serie 2. There would be a number of small modifications to get the Serie 1 tank from the Revell kit on top of adding the different equipment of the UAE Leclercs.
The French forces in Kosovo used a winter camo over their normal colours. This might be an easier option...