Sprinter vans frankly would make a.good tow rig. I drive a cargo 2500 at work. Put 6000+ lbs, give around 12000, power is fine. Granted not the.same as pulling a TT.......
But for OP, it might work in a 3500 ,chassis. I would not recommend the 2500. You can also.get 4wd in the 3500 dw version. Wheels sit inside van body vs Bryan's needing to be outside.
With this said, the motor is around a 200/400 hp torque setup, so it will not e the fastest setup. BUT, it will get them from home, to campground and back in a safe and sane.manner.
Marty
92 Navistar dump truck, 7.3L 7 sp, 4.33 gears with a Detroit no spin
2014 Chevy 1500 Dual cab 4x4
92 Red-e-haul 12K equipment trailer