For us, a one ton van is the perfect tow vehicle - perfect for us in that we like to surf fish, and we can stow our rods inside without taking them apart. Also has plenty of room for the dogs! I also think vans offer better visability and more creature comfort if you have more than 4 people.
That being said, if you are going to load the van up with people and stuff, you are probably going to limit the tow capacity to 8500 lbs or so, but that should be plenty for the size trailer the OP is talking about.
Our 35 footer is like 8000 lbs and pull great. The big block gasser or diesel and 4:10 gears are essential if you are going to get close to maxing things out.
Our previous tow vehicle was a Chevy G20 with 5.7L gasser and 3.73 gears, and at that time, our 6500lb trailer was about as much as it could handle.
2012 Keystone Outback 277RL (Salty Doghouse II)
2005 Ford/Quigley E350 4x4 Van 6.0L Diesel (Moby)
Molson (goldendoodle-11yrs) & Zeke (parti poodle-6mos)