Guys i need serious help.

I have a set of servopacks with matched ac motors. They are Yaskawa SGM series AC servomotors (SGM-08AFFJ12) with DR2 series servopacks (DR2-08AC-NY41).
Is it worth to think about buying them? My concern is if will i be able to control the motors using soft like Mach3 or linuxcnc or other STEP/DIR based controllers? Second thing is PID parameters tuning - any Yaskawa software avaiable for free without need of 'special kables' directly from NASA?

I'd love to use them but is it possible for amateur to use them?

Many thanks!