Unfortunately, I did the layout in Indesign CS3, so the number of people who can work with the source is going to be limited. However, you should be able to copy the text out of the PDF (I didn't restrict it).
Or if one of you wants to write the copy for another handout, one about best practices, one about laying out the labyrinth, one about training or running, or whatever else you want, I can certainly take that text copy and lay it out a little fancier.
It looks like you did a fine job of explaining the how-tos of participating. I can't see that you missed anything, or that it would be hard to understand what the wall is expected to do. As to the other material, my only concern is gathering all the info needed to write the copies. It might be helpful to post links to pages, videos, etc., here in the forums so that people don't have to go crazy searching. This is assuming, of course, that some people who may want to write don't always have the time to search for everything they need.