I found two possible sets on Ebay...Pre Size Model Specialties #1121 Arabic Tank Numbers. These are dry erase markings. Tamiya used to sell #66518 Gulf War Operations Decal Sheet which includes a section of Arabic numerals. Verlinden has a set #288, also dry erase, for the T-34/85 which has a small section of Arabic numerals and some unit plates. You could find a set of Arab numbers online, print them, and make masks out of them. I believe the Squadron book
Ground War Desert Storm had some photos, though the Concord books would probably be a better value. Most Arab armor is very drab in terms of markings, sometimes just carrying the unit symbols on the front hull. If you don't want out of the box builds, there are some AEF Designs aftermarket conversion sets: #KM-23 is an early, unmodified T-62; #KM-17 has a modified early turret with a T-55 cupola for the DShK machine gun, etc. You may want to get an AM turret, as that is the Tamiya's main failing: Verlinden made one, and so did AEF, possibly Chesapeake Model Designs as well.