Turns out chinatobby also sell programmers for their panel driver boards, and in convenient packages with a programmable board.

They also sell upscalers which convert from CGA/EGA graphics to VGA - these are useful inasmuch as it has been shown elsewhere * that the video from classic boxMacs ** is near enough to EGA for a few diodes and resistors *** to convert and sync to an EGA monitor. Add one of those and viola - VGA.

* somewhere on this forum there's a relevant thread

** 9" b&w all in one 128k --> Classic II, not including Color Classic/CCII

*** or something.