How would you go about making this trailer sturdier?

I'm doing a custom build of 42098 as a standalone trailer which can accommodate 6 cars and rest on my semi. I'm struggling with the list around the hitch as well as the general design of the hitching part. Any ideas would be appreciated. I'm working with what I've got now but im willing to order some more parts. This thing is huge. submitted by /u/sunderex [link] [comments]