Sparky, I can only comment on the 605 since I own one. The motors are servos. Voltage is 130 volts and the amperage is too high for the Gecko's. Read done a few threads as Pimpbike and I discussed motor drives for these machines.
My spindle is nmtb 40 taper with power drawbar. I'm not sure if there were any spindle options offered with that machine so you would have to confirm this with the one your looking at.