This was right after I built it. It has 800 pound of potatoes on the bed. (My Dad and brother grow potatoes.) I wanted to test it with weight before painting it in-case I had to beef it up. I drove it around the barn, over bumps, and it was good to go. So I tore it down and painted.
The sides are made out of 1/2" sign plywood.
This is what they will look like at a show. I made a light duty hitch for the plow, so I could have it mounted for the shows, and still pull the wagon.