So you are looking for something like this?
Sure-Trac | Tube Top ATV Utility Trailer Trailer | Sure-Trac
If you can, find one where the tailgate will flip forward and lay flat on the bed, that will greatly improve your mileage when towing it unloaded.
Aaron Z
2900 lbs may be accurate for a cord of dry softwood, but if you haul green hardwood expect a cord to weigh closer to 5000.
Also I'd make sure that it was easy to remove that rear ramp.
If someone is loading something with a fork lift from the rear they would crush that ramp and the load will still be to far to the rear.
I modified mine to be easily removed and a fork lift can set a pallet on the trailer then back up and push the pallet further on to balance the load.
You might want to look at Karavan trailers, currently being sold at Sam's Club as well as other places. Inexpensive but seems to fit your requirements. All sides fold down if desired, and are removable, including ramp tailgate. Only two things I added was to change out the fixed leg jack stand for a flip up, and add 6 tie-down I-bolts.
I bought their smaller one, 12' to haul my mower and/or SxS. It's also used for numerous other chores like hauling logs and brush as needed. I think I paid a little over $1K for the 6'x12' size.
Now - its not a Kaufman or PJ for sure. But then, I already have a 20' PJ for heavy duty tractor hauling, etc.. Don't need two Cadillac trailers...