If you move up to the Titan XD you will be fine. My 2018 XD SV 4x4 is 6800 with me, wife, 2 small dogs and a full tank of gas. Gross vehicle weight is 8800. Vehicle weight with all of the above and travel trailer hooked up is 8140 so close to max but certainly not over. Also, at 9200 lbs and 36 foot my trailer is a lot heaver/longer than the one you asked about. The Truck handles it fine. It will drink up the fuel though. Worst has been in the 7's and best in the 10's.
Do some research on the Titans first as it seems you can either get a good one or a bad one. When its a bad one its a nightmare of issues. I had a '16 that Nissan bought back but my '18 has been very good so far. The '17s have an issue with some of the engines developing a knock in #7 cylinder that requires an engine replacement.
Hope this helps!
