I have decided hoow to set up the Matrix displays and everything so it is easy to use and also repair. I am going to fabricate two boards which will hold 4 displays each as well as all of the required driver components so then I can essentially have them be modules I can hook straight into Trikles. Then I am.going to seal them epoxy or similar and use velcro to attach them to the jacket. This weekend I.might be able to make it out to The Legacy a sewing thrift shop in neighboring Sebastopol, they usually have all kinds of velcro.