In case it's of any interest Rapid Electronics in the UK list the RK27 in their clearance section currently:
https://www.rapidonline.com/alps-rk27112mc-100k-motorised-dual-gang-rotary-potentiometer-66-0227
Could be useful for a Whammy amp build, even if the motor isn't used.
https://www.rapidonline.com/alps-rk27112mc-100k-motorised-dual-gang-rotary-potentiometer-66-0227
Could be useful for a Whammy amp build, even if the motor isn't used.