White knuckle towing
The story of your life? Doing more with less has its place and we all have done that somewhere before.
The proper equipment might be the story that SAVES your life, and that of your family and/or someone else's. I would find some 16" or 17" wheels and tires. In an LT tire and smaller wheels you will enjoy the drive a lot more and not worry about an accident.
I tow 35' TT with a 163" wheelbase F-150 extended cab with Michelin LTX tires and the thing that really settled my rig down and made it enjoyable to tow was a Hensley Hitch. They are not cheap but life is not either. Found mine used on C-list, Hensley also sells recon/guaranteed for life units.
2001 Ford F-350 Super Duty CC Dually, 7.3 Diesel
2013 832IKBS Flagstaff Classic Ultra Lite, Hensley Arrow Hitch, Carlisle tires
2016 days camped....211, it ain't over yet!
On the road to ALASKA May 6, home Sept. 13, 2016. 23 states, 3 Canadian Provinces, up to the Arctic Circle, 17,300 miles, 131 days on the road. 1 flat tire, 4 oil changes. What a beautiful trip!