I love some of the custom stuff you guys are doing for trailers! I considered building my own before I found a great deal on the one I have now.

I am currently using this setup to haul dogs, groceries, bikepacking gear etc. Cannondale Killer V 500 + unknown trailer built in the Netherlands I think. There are no manufacturer marks anywhere on the trailer. I got it from a local guy on Craigslist who told me his family has used it all over the world. Seems very sturdy and it pulls well, but it's a tad heavy.

The spring-based connector attaches with a clamp to the left side stay. The connector squeaks a bit on rough stuff but it's not too bad. I have lights and flag I can attach to it when riding on the road. That being said, it mostly sees mild trails and dirt roads.

So far so good.