the new cable adapbter?
I"ve seen lemo > adapter > KA100 but thats it.
the more I think of this, the more I believe that the end of current cable can be replaced w/a lemo. I can't see why not. the 'active" part is in the end that connects to the AK capsule, driving the signal down the cable to the mic preamp body. If you can get the lemo "head" for the KA100, then that'll work out fine.
otherwise, lemo > SAX it is.