I have the same truck except without all the bolt-on goodies. Used a Reese SC hitch whitch works like an Equalizer except no metal to metal rubbing. Weight distribution with built in anti-sway. It worked great albeit on a lighter trailer. To be fair, the hitch came over from a half ton truck and I never towed the trailer with the dually without a WDH. Squat on the dually with around 900 lbs. of tongue weight was around an inch. I kept my air bags at 6 pounds minimum pressure.
They do make friction type anti-sway bars only. About 60 bucks.