Jazirah Aviation in RAK offer training for light sport aircraft which you can then hire to fly solo. You’d have to talk to them about the licence you get and how easy or difficult it is to convert it. But that’s only for three axis microlights, and if you want to fly for a hobby in the UAE it’s your only real option. I think you can theoretically do a PPL at the Fujairah Aviation Academy, but according to their website it works out at £15,000 for a 45 hour PPL course on a Cessna 172.
In either case, if you got the licence any form of private flying is massively restricted because of military paranoia, so where you can fly is really restricted, and you’re not about to head of to Al Ain or DXB or DWC on a Friday morning for a bacon butty and a Mug of Tea. I’d suggest saving the money and trying to do a concentrated ppl course in the U.K. next time you get a chance to be home for a while would be more sensible, unfortunately.