This new system is not available with the 22" wheel option. I tow a 16' enclosed trailer a few times/year. Tow load is approx. 7k lbs. Anyone out there familiar with this system? How does it differ from my 2011 EL Ltd. w/air leveling sys. and do you think I really need this new leveling system?

Looking at a Platinum EL 4x4 in Magnetic w/Brunelli and head rest DVD sys. and am having one heck of a time finding this config. in Fords current dealer inventory. If I drop the leveling sys. then I'll have no problem finding my truck. Thanks for the advice...