I bought a PIC16LF1907 that has an LCD driver that can do 3V, 1/4 duty, 1/3 bias panels like the SM510 does. The hassle is connecting the 41 pins! The game uses an elastomeric connector between the panel and the PCB, and the pads are 1.2mm pitch.

I should have bought one of these:

but instead I cut off the Top Gun PCB and I'm in the process of soldering wires to the traces. When that's done, I'll be able to drive each of the 33 segments on the 4 commons. Then I can map the pins to the segments, and I can drive the segments to get pictures of them.