Nick is right, I was driving a dump truck before a car (private roads), and as Dad beat into my head, the brakes are for stopping, the engine is for dropping down the hill. Served me well on the million dollar highway when the trailer brake controller broke.
My 2012 is fine with 45,000 half towing. Get any good quality brake pads, the OEM are good on Fords. If you do not feel pulsation, the rotors are fine. Take them off and check run out if you are technical. Then with a change in your driving technique and you should be fine. Use that engine.