I would strongly consider the Andersen No-Sway WD Hitch if I were you. I moved from a Reese to this last year, and I would never look back. When properly dialed in, they both performed about the same. But the Andersen is so much easier to dial in consistently.
I will admit that towing experts will confidently get a bar system to work right every time, but for this noob it was a relief to have the Andersen make it so easy. I could really get it
As for the airbags; they can make towing lot easier if the trailer is still raising your nose. But I would tow with your Ram a few times before making that decision. Not 8 hours of towing, but an hour or so would help you to properly understand how your TV and TT are working together. It should be fine, but only you can make that decision.
( I have a 8,000 lb. TT behind a Ford Excursion Diesel, and I use airbags to level things out. Just for additional safety and control. )