I suspect my camper is similar to what you are looking at. We have a 2018 Outback 325BH which lists an 8500lb dry weight. I imagine we have at least 1500lb worth of junk in it ;-). I have a 2018 Ram 2500 Crew cab with 6.4L 4:10 rear. I did seek out the 4:10 rear and it tows great. Towed from PA to Maine and PA to FL already and did a great job. I am a bit heavy footed so I only got 7-8 mpg towing but it got us there. With the truck prices continuing to go up, I just cant justify the $10k diesel uncharge any more.