Ron, Here is a site to determine all specs for your specific jeep.
http://www.wkjeeps.com/wk_towing.htm#SPECS
Base on what I saw, You most likely be over the manufactures specs for towing a loaded 2720. But as we have seen and read, there are folk here that tow with similar TV capacities. It all depends on experience towing and terrain. It does sound to me that you have little or no experience in towing and for that main reason I would not feel comfortable with that vehicle and the 2720. I had a 4.0L Grand cherokee and upgraded to the 4.7HO for that extra margin of safety and there is a big difference and am very happy. Also, I have many years of experience in towing and know what I am comfortable with. Good luck in your decision and acquiring your TM.