Has anyone had a tow hitch added during or after purchase? If no intentions for yanking anything around over 3500 to 4000 lbs, is the factory tow package really needed as oppsosed the Dealer installed version? Granted the the factory package includes a transmission temp guage, higher axle ratio, suspension air levelizer. Is the heavy duty radiator and battery standard to all Armadas since all units are equipped with the tow/haul transmission mode? Buying a model off the lot with only the options wanted but needs a tow added, I was wondering what is and isn't already built into the Beast with a 9100lb towing capacity. I would be hauling ie: 16.5ft V-Hull bass boat, large pop-up camper or a motocycle trailer. Any repsonse would be appreciated.