Since I’m no longer making or selling Brain Boards, I’ve made the Gerber files and CAD files available for download from my website. This board has been cloned by a few different folks, but if you want to make one, it’s easier than ever.
http://www.willegal.net/appleii/brainboard.htm
I’m aware that Superproto WIKI is currently broken. I’ve made a couple of half hearted attempts to fix it, and will hopefully find some more time in the near future to properly repair it.
Have fun,
Mike