Sorry, not done much. Refinish is continuing, had to get some more clear coat to finish the job but Rich is on the case. As for me, I got a new soldering iron for Christmas from my wife, so I'm going to put it to some good use and wire it up as far as I can.
Regarding mounting the choke, I'm going to take the later approach of a bracket attached to the pot shaft like a washer and the choke attached at the other end. I'm going to make it out of a PC expansion blanking plate - found a nice stash of 5 completely flat, unstamped ones to experiment with. The earlier approach was to solder a bracket onto the side of the pot casing, but I have no idea if this metal will take solder, hence the mechanical coupling approach.