Scored a Prolight 2000 and a Prolight 3000 from a school. almost no visible signs of use. The cards for the computer are missing. Planning on going with a breakout board and some stepper drives. Mach soft ware or linux CNC to run them.
The Prolight 2000 can be run as is connected to the serial port of aPC. I can send you the DOS control program if you need it.
I'm not familiar with the 3000.