I remixed the trailer to fit the skid steer. I used Hatchbox real wood filament for the trailer bed. https://www.printables.com/model/1218974-mini-trailer-for-skidsteer

I pull it with my articulated dump truck that I made and scaled to work with the skid steer.
 https://www.printables.com/model/1189649-3d-printed-rc-articulated-dump-truck (edited)