We were in the same boat. We have an F350 with a B&W turnover ball that we use for a stock trailer and a flatbed. We didn't want to install another hitch or buy a smaller truck.
I found an Andersen hitch that connects to the ball and makes the "fifth wheel" hitch. It still took some mods to make it work with the 19 Scamp, as was, it was too close to the bumper and I had very little turning space. The sleeve that holds the ball on the Andersen hitch had to be moved 10" toward the rear to allow clearance between the rear of the truck and the front of the Scamp. I've found this to be perfectly safe, it pulls and handles well.
With your truck, you might have to add some lift between the frame & axle
of the Scamp. Ours had 3" of lift and we had to replace the 13" tires
with 15" tires
. That gave enough lift to tow pretty level.