You sound like you know what your doing.
I have a 14` F150 Boost with Max Tow; Payload Package, Off Road Pack. Loadlifter 5000's, Hellwig Rear Sway Bar, E rated truck & trailer tires, Husky WDH w/ Sway Control and a 5* tow tune.
That being said I safely pull a 38' 9k dry Keystone Outback with ease.
I too was looking at a "light"-lol> 5th wheel but honestly could not find one with all the amenities until the Outback.
Your truck will do great, just plug all the numbers in and make sure your not over on weight limits.
That will dictate what size & weight of trailer you purchase .
Ohh, and welcome!