Trailer hitch height adjustment and chain question

Not sure if it’s a Q7 or not. I helped a fellow setting up his Q7 for a T@B 400. The tow info table covered a few configurations and went from 4400 to 7700 pounds towing capacity and 440 to 770 pound hitch weight. He had no problem with the T@B but don’t know what this trailer is for weight. Point is it may be fine depending on the cars options. A weight distribution hitch was specifically not recommended so probably not an option for the OP.