Caracycle

So I’ve settled upon a new project. A sub 500 pound, easily built coach composed largely of bicycle parts that are cheap(ish) and widely available, to be pulled by four bicycle riders. I’d like the coaches to be able to daisy-chain, and form into a larger caravan, with the riders of each coach pulling collectively. I’m sure there’s a limit to size, where more riders and coaches lead to diminishing returns and increasing spectacle, but I don’t know it yet.

Important things that need to be pondered:

Whether or not a coachman is necessary. While the steering will be handled by the cyclists, I think the coach’s brakes would be best controlled by a coachman, but it is conceivable that the cyclists (or a single cyclist) could control the coach brakes.

How to make this project possible without welding. I would like this project to be something that anyone with a desire to attempt could build, regardless of skillset. I need to balance the trade between accessibility and sound structure.

And I’m sure there is much more that has yet to reveal itself.