I picked up this trailer in Kentucky a few years ago. 7500lb capacity. This was a trip from Michigan back to KY with some friends a few years ago.
When I solo, I put my ATV in the back of my van then camp in the van. My wife went with me on this trip back to KY last fall. We used to have fun in the back of a van, back in the day. Getting too old nowdays. She was not thrilled.
This is my concept for a poor man's toy hauler. Pickup campers are pretty cheap now and I thought I would mount one on my utility trailer.
I have a good friend who we built one just like your Drawing. One of the Handiest and cheapest rigs on the road. I built him a rear addition so he can carry one under the camper and one at the back. Works Awesome and pulls great, just center up the camper over the axles and rig you up a rear extension and hit it.