So... the latest picture attests to the fact that I had a 3D print test run. A few issues were high-lit, and there's an updated file on OnShape (see link above). I'm still working with Slic3r to try and improve the print, given that there's a bit of support needed around the perimeter, when printing upside down, and the screw holes need a good deal of extra plastic around them. But the batteries fit nicely... hehehe.

This is great reading for anyone looking at this project:

http://hackaday.com/2017/02/19/an-electronic-90v-anode-battery/

http://www.dos4ever.com/battery/battery.html

I was looking at driving my CCFL transformer using a TTL counter chip, because it's a state machine, and so I have control over valid states. That said; his ring oscillator stuff is so elegant :)

So there :)