You clearly are waaay overthinking it. Is this going to be your 1st car here ? If you have decided what to get and how much you are willing to spend on it 80% of the battle is won, now you just have to wait for the right one to come along, sometimes it can even take several month. I know the feeling a close friend of mine is also looking for a car at the moment and we have seen atleast half a dozen in the last two weeks.
Sometimes it works to put out a wanted adv. Long back I was looking for a Range Rover Classic and even back then they were rare as hens teeth. After waiting for a month or two and not finding anything I put out a wanted adv in Izzle. Immediatelty an older british gentleman reached out to me. Said he had one for sale.
Went out to look at it, he was the second owner and he had bought it from a friend who had left the country. Car was in excellent nick, always parked in a closed garage with only 79.000kms on i. Really low kms for a 1991 He only used it on the weekends to go to beach with the kids. We could not make a deal, because I was not budging from my price and he from his. 3 or 4 years later another friend wanted a RR Classic and I happen to still have his number so I called him and he still had it but closer to 85k ish kms this time and he would still sell it.
Eventually my buddy bought the car for 8k drove it for a year and then sold it to another friend who still has it to this day.
P.S : You can actually go check out the cars physically at emiratesauction, they have a big yard behind tasjeel village as well as in Aweer