Inside a FBO control box

Just to put things in more modern perspective, this is what I would use, no external ballast required.

Included:
chip for Variable Reluctance trigger (actually for 2 triggers)
IGBT ignition driver
Automotive rated voltage regulator for 5V
Current limit control
Misc. caps and resistors

I am more into Hall and Optical than VR, so no plans to make a kit.