The multiplier is done!
Transformer, multiplier and current limiting resistors are in oil, the 20 GOhm divider is installed and tested, now I only need the driver electronics and a nice box for this thing to stand on.
If I get excessive corona from the resistors I'll have to add grading rings at the end of the PCBs, but that will not be an issue.
Maaaan this is going to be fun!