Towing a large vehicle

OP I'm sorry some people on this thread are not being helpful. This is very simple. Look for a Diesel pusher or Super C in your price range. There is also another very narrow possibility. There are some standard Class C E450 chassis based 31' units with bunks that do have a 7,500# tow rating. I.e. they have a GVWR of 14,500# and CGWR or 22,000#. The tradeoff is you will have very limited water, sewer and battery capacity. Space for all your crew will be at a major premium as well. You will likely need to add seatbelts to the rig. The E450 Class C units are also hot and noisy up front. All of that said they are very common and inexpensive to purchase. Ask the seller to take a picture of the weight dataplate and the hitch dataplate. Don't worry if the difference between the GCWR and GVWR is less than your van weight. That just means you can't fully load the coach which is very common. You also need the dry or shipping weight of the coach. The difference between the dry and GCWR is what you can carry including what you can tow. In my case the shipping weight is about 21000# the GCWR is 30000# I have 9000# to work with. If I want to tow my Yukon XL I can't fully load my coach. It's not complicated. We usually tow a lighter vehicle for that reason. What you need can be done.