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!
Bogi