We tow a 2019 Chevy Colorado. Our first coach was Newmar gasser (Canyon Star) with the 5K limit. We had no issues with Colorado as toad for that rig. When we went to the Cornerstone, we just carried on. Since gasser didn't have air brakes we went with Invisbrake system and that works fine. Kept it when we moved to the diesel. With this truck, we also needed the negative battery isolation. Went with Roadmaster solenoid, it works well.
Do be aware, if you shop installs cost is significant ($5K ish) for all parts and pieces installed. You can save money if you can do some of the work.