One bit of caution: in days of old ALL 4wd Jeeps had manual transfer cases and could be twoed 4 down.. Then they had one transfer case that .. It was not recommended.
Last spring I rented a Jeep liberty from enterprise (nice ride) FULL TIME All Wheel drive with automatic transfer case and electric clutches.. NOT towable 4 down
Make sure you have a MANUAL transfer case.. That's all i can add.
Oh, one other thing.... One of the Auto mag's does an annual "Bang for the Buck" contest, Companies subimt their fun (usually sports) cars and JEEP walks away with the trophy, Most every year. You see the formula is "FUN/Cost" and,,, Well, Jeep is very big on Fun, and low on cost, compared to say a Mustang 5.0.