You can eliminate sway with a Hensley or ProPride hitch. We have the Hensley and love it - have installed or had it installed on the most recent 3 TTs. We pull with a 3/4 ton Yukon XL with the 8.1 gasser - built to tow, and we are still grateful for the Hensley every day we're on the road. They are expensive and heavy, but really work. Have heard great things about the ProPride, too, but can't speak from experience there. Hensley also sells a quality brake controller. As to how "tow-worthy" that Armada is, would need some additional information to analyze that. Happy camping!
Chris, Paula, & camping Labs, Shasta & Cammie
2005 Yukon XL 2500 with 8.1 Engine, Allison Transmission, and 3.73 Axle Ratio
2019 Rockwood Signature 8335BSS