I think a couple of us have this kit from summit. I've also never had a strap work lose. The only "issue" is I wish it came with the Velcro loops for securing the excess strap.
https://m.summitracing.com/parts/cmb-29-0012
For a weld on D-ring, I just got the big ones from harbor freight. I'm sure there's a better alternative somewhere else, and it's probably better to get the trailer first and plan your strap ring locations before you purchase the mounts since there's more than one style.
I also use that kit from Summit. Absolutely satisfied with these straps and axle wraps. Never had an issue with them at all.
Jason, I would highly recommend a weight distribution hitch. Take it from a guy that has pulled quite a bit with an SUV rather than a truck...the weight distribution hitch makes a world of difference. I have never used the anti-sway part, just the weight distribution bars. I wouldn't tow with an SUV without them.
Airbags are great and do a perfect job of leveling the rear so it is not squatting down but they don't distribute an weight through out frame of the tow vehicle. In a 1500 style SUV, both would be optimum but if you had to choose one first....WD hitch.
Look on CL, I got mine there for a fraction of the cost new. The name brands are solid steel and it's pretty easy to give them a look over and tell if they are in good shape or not.