Many 90's Charmilles were built in lower cost countries. I would guess Agie followed along.
Look for an old Makino U Series if you want to hold this tolerance. This will be the most accurate early 90's machines you might find in this price range. I have 99 right now that holds tighter tolerance than some new machines. The machines are very expensive new but you can sometimes you can get a deal on a new one. I was just offered a Hitachi digital 2000 for 5k. Thats a good machine.