Confused

I have a 2013 SV with factory tow hitch, tow mode, backup/hitch camera. I've always been led to believe that it had a tow rating of 9300lbs. I just noticed the door sticker says 7100lbs. I checked the rear end and I has 2.94 gears. I'm supposed to be going in 3 days to purchase and pick up a travel trailer that weighs 6,521lbs with a hitch weight of 675lbs. Am I up the creek? And if so how far? I can still back out of I need to. I'm just not wanting to take this on a 600 mile trek to see the wife's family with her and my kids in the truck if it isn't safe. I'd really appreciate any help, advice, or words of wisdom.

Thanks.