Absolutely new, never even taken out of the box apart to check contents were all there.
Have a custom made clamp that slips OVER a reduction knob, obviating the need to remove the dual speed knob (uses rubber compression via grub screws to affect grip).
http://www.sharpsky.net/
$500 : postage included to anywhere. It's still $500 even if you pick it up
Reason for selling - automation bores me - I actually enjoy the little chores associated with imaging. To me, getting sharp focus is a challenge to be met, not to be automated by a computer.