I am planning to upgrade my popup camper to a wolf pup 16bhs (3100lbs dry and 370 hitch weight) I already have the parts to install the atf to make the pilot 3500lbs and 350 toungue. I am only going to use this for flat ground towing local (within 90 miles). I am short on the hitch weight. Do I need air suspension and weight distribution hitch? Thanks for the input! I plan to upgrade in the future but this is what I have at the moment.