Moving to 5th Wheel from TT. Lots of Questions

I may catch some flack from this posting but here goes. A long long long time ago I bought my first TT. It was a 1968 Terry. My family and I used it for many years then I sold it and bought a Class A Pace Arrow. After several years of use and two engine swaps I sold it and bought another TT. I sold that and bought a slide in Lance which demanded a heavier pickup. I bought a new Dodge 2500 Cummins diesel. After a 3 week vacation to central Mexico I was ready to murder my wife and she was ready too. We sold that and bought my first Fiver. I had a gooseneck hitch installed in the bed and bought a gooseneck/fifth wheel adapter. I really liked that configuration. No bulky fifth wheel hitch to remove or reinstall when you need your pickup. The fiver was a Forest River product that was a piece of crap. I fabricated a tow hitch on the rear of it and pulled an enclosed motorcycle trailer behind it. Several trips to Mexico and I was done with Forest River, forever. I sold that Fiver and was camperless for a while. I then bought another Fiver and sold that and upgraded to an Avion Fiver. A truly wonderful product. I fabricated a hitch on it, fabricated a mount for the Honda 3000is gen set then sold it. There are many states that won't allow multiple trailer configurations so I bought another Class A,a Rexhall Aerbus. Now I can tow our boat in any state in the union without restrictions.

HERE is rating chart.
I believe that the hitch will not disturb the soft cover from closing when unhooked,but before the purchase ask the store.