Unclebud87, you are the first person I have heard of that is doing something similar to what I do with my truck. I just downsized from a 3/4 ton diesel too. I bought a 2020 silverado 1500 4x4 LTZ about 3 months ago, installed a B&W turnoverball gooseneck hitch and hauled hay with it. I have a 36' gooseneck inline round bale trailer that probably weighs around 13k loaded. I only haul a few miles and only about 5 days a year so I couldn't justify keeping the diesel for no more work than that. I take it slow and easy and travel backroads only never getting over 35 mph. Surprisingly I had no trouble stopping it. I have been researching airbags and lifts because the rear sags a lot when towing with the gooseneck (also have a 16' gooseneck stock trailer). The boat doesn't squat the rear hardly at all (about 4k I'd say) but both gooseneck trailers do. Heck just hooking up a gooseneck trailer empty it's already sagging.
I am trying to find out if there are any problems combining a leveling kit with rear airbags and maybe rear 2" blocks and towing heavy. I guess yours came with a 2" suspension lift so you probably haven't leveled it huh? I'm also a little worried about the light tires that came on mine and will probably step up to loadrange E 33's once I need new ones. I just can't bring myself to take off good tires and replace them. My stock tires are 265/65/18. Are you running 10 ply tires? I want the leveling kit and rear blocks to get better ground clearance and fit larger tires. I've already bottomed the front crossing a creek that I used to do in my old truck no problem. And don't get me started on that front air dam. I've hit it way too many times for this to be a 4x4. I can't tell from the photo, what front grill guard do you have?
Any help is appreciated.