I wanted an old trailer, so I made one. I modeled it mostly myself, with the exception of a few small parts around it. I may have gone too far with the trailer frame, trying to make all the welds visible with all the bolts everywhere, but it looks good, hehe. It has an optional side, ramps that can be adjusted once unfolded, a working winch, and good suspension, but you might run into problems if you load a large Volvo loader like in the screenshot.The platform is 20 feet long.

Sebcroteau is credited.