Took a long time searching eBay but found three matching NSK ground ballscrews for my mill. 10mm pitch, 14mm diameter. $260 for all three. More than I wanted to pay but they are in fine condition. Probably replace the brushed servo motors with some CMC brushless ones that I have at the same time. The ballscrews are longer than needed so will have to be cut down to size.
Nice, give update, when is installed
What brand of mill is that?
@Alex_Krause Seig X3 that I purchase about 13 years ago. It was cnc converted using the original acme leadscrews, servo motors, gecko320’s. My two other machines use ground NSK/THK ballscrews and always wanted to “fix” this one too.
I know what you are talking about 
Looks better than my machine Jim.