Are any of these parts so old and obsolete that I would be wasting my time to try to build a CNC plasma table out of them. Its just for hobby use, but my hobby isn't repairing illegitimate plasma tables. You can see pictures here, full size them and you can read part numbers.
http://www.cool-o-rad-o.smugmug.com/...5699#150489276

5 Simple Servo Drives: 540-20-540 (720watts)
7 Simple Servo Digital Servo AmpsSS-508a and SS-504A
2 Simple servo drive 524-20-316 attached to a CFI inc adapter box and Lintech lead screw.
2 AC Tech SCF series power supplies.