FYI - just got the UPS notification that my plexiglass platen has been shipped. I'm going to go to the hardware store and buy all the other pieces today. I'm going to make a shot at getting most or all of it put together by the tie the platen gets here.

The tools are all Windows in the original setup. Rather than fight that, I'm going to coopt my daughters machine to do that work and see how that goes. If that is too burdensome then I will fight the fight to get OS X versions (or Raspberry Pi!) versions of it all.