im not sure about the rent, but i guess its cheaper than UAE
Home center, The One are available here in doha so u dont have to ship yours.

Land cruiser is the most common car in doha, ppl love it and it doesnt lose value, and the service and spare parts are cheap, but the dealership SUCKS big time and it drinks ALOOOOOOOT of gas
You also have Chevy Tahoe, GMC Yukon, Nissan Patrol ( have the same problem with gas ) , nissan Pathfinder and Mitsubishi Pajero ... thoes are the best, most common in doha and doesnt lose value ;)

cheeeerz