(List for a 200W Sanyo-Denki P5 and
PY2 drive is $675 + $1125.)

You can get brand new 1kW Sanyo-Denki P5 AC servo motors for $39.95 in
abundance on the surplus market. Yes, that's forty dollars. Now go
price the drives and the 3 phase power supplies.

* From standstill, accelerate 200 lbs of table, fixtures, and work to 590
ipm in 80 ms. Roughly 1.5 G's, accomplished in the first 2" of travel.

In theory perhaps. Motor torque is one thing, the drives ability to
accelerate the motor to the required speed in 80ms is another. Why do
you think CNC software has start velocity and acceleration options?