I have to agree to Chris. Be careful with a trailer without brakes. I have a pop-up trailer and completely loaded this thing weighs about 2000lbs. This rig has no brakes. It is a small trailer but I already got in the situation where I had to do an emergency stop. I was really glad that nobody was directly in front of me.
It was a shock for me because I was only used to trailers with excellent surge brakes. You did not even notice a diffence with the trailer because the brakes were so strong.
I would not recommend towing heavier trailer without brakes. Pulling is fine, but stopping ....
My next camping trailer will have brakes again, no matter how light it is .....

By the way in Germany the Trooper is rated from Isuzu to tow about 7700lbs (3.5t) with brakes on the trailer and about 1650lbs (0.75t) without brakes on the trailer.

Stefan