In the view of making a PCB to hold the 64 anode drivers plus the 64 cathode ones, it is time to test some SMD components in order to make it as compact as possible.

For the transistor, there is apparently a equivalent from Diodes inc, the FMMTA42, 0.03€ in 250 quantity. The high voltage diode can be a bit expensive in smd format. However NXP has the BAS21VD, which is 3 diodes in a SOT package, 0.06€ in quantity of 100.

I would like to take some margin with the passive components regarding the max voltage rate. It appears resistor and capacitors are more easy to find in 1206 format than 0805 for a >200v grade.

Fortunately I have convenient adapter board to make some test on a breadboard to ensure the components works:

 Here the second anode is driven with the SMD components while the others with the previous ones. No difference is visible, so maybe it's time to start KiCad. And start to think about some shift registers and demux to drive these circuits without the need of 128 GPIO!