i dont know where you got that liberty price at, but if you can actually buy one at that price, id jump the hell outa it.
The (new desiel)is a remarkable towing vehicle,
the HO 4.7 V8 grand cherokee is also great. I used/owned both of the two and towed my 600lb wet weight quad and 1200lbs trailer with no problems on grades, downhill, or anywhere. I recomend the jeeps other than wrangler for towing personally. and heated seats are great!