For those looking to mod an older KONE EcoDisc system, here's great news.

Imperial Electric recently released a direct replacement for the EcoDisc machine that will work on almost any generic controller (i.e. MCE, VA Controls, etc). The only downside is that it only supports up to 2500lbs capacity.

https://acim.nidec.com/elevators/imperial-electric/products/gearless-acpm-machines

The series number is ACPM 540 and 543