As we all know, a lot of the early home-built trailers used repurposed components from the autos of their time. Here's a simple one that a Rolls-Royce owner recycled from his 1933 Rolls and towed with his 1936, way back when... https://www.ebay.com/itm/One-of-a-kind- ... wu&vxp=mtr The main items used were the front axle and wheels for the running gear and the roof canopy frame/bows for the tent support on this minimal tent trailer...
Cheers,
Mezmo/Norm