That’s awesome. They can handle a lot.
Except .... One I bought one out of RRAD with a nice, well made, shop built steel topper. It was pretty cool! BUT! If you ever pulled it empty, do not go around turns very fast. The top weighs more than the trailer bed and if you hit a bump, at a fast turn it would bounce up and try to flip over! (Maybe I’m exaggerating it a little, but it got “wonky” on me a few times. Enough to scare me.) With tools or a load in the bed, it was fine. The top was the perfect size to fit inside the frame and tarp, so you didn’t see it with the tarp on. It was lockable, and very sturdy. A really nice top. I believe it’s made of 1/8” / 11 ga steel. It’s stout and it is heavy duty. You could camp in it or on top of it, if you were so inclined.
I dont use it any more because I don’t want to pull it empty and risk a bump flip. I drive too fast, ok? There I said it.