Looking at buying a 2003 Expedition Eddie Bauer 4x4 with a factory tow package with trans and oil cooler to tow my Keystone Premier 31bhpr. Specs of the TT are Shipping Weight 6470, Carrying Capacity 1130 Hitch 780 Length 35' 4 Width 8' Height 10' 11. From what I understand the Expedition has a max tow capacity of 8600#'s and the TT will be 7600#'s if it was fully loaded to it's max carrying capacity. I will be using a WD hitch. Would there be an issue using the expedition to tow the TT? I know gas mileage will not be that great.