I bought one of Oscar's kits a while back and I just got around to putting it together. It was kind of neat booting up a straight V6 (it's been a long time) and playing with those DEC operating systems that I had learned to hate (Really Sh-ty Timesharing System). I had hoped that someone, somewhere had a JHU/BRL dist around (well if you do, I'd love to get it). But since the thing is mostly just a decoration in my office, I just hacked the idle function in 2.11 BSD to mimic the one that JHU Unix had.