Hi Greg,
Your mill is about 40 years old, i changed the drive motor bearings in my easiturn3 £50, the other bearings (i found Buck and Hickman cheapest) are metric and cheap as chips. Lube the ballscrews, they will be dry and the lubricator or pipework may not work. I read where the spindle drive was not so reliable and expensive to fix, so if it works it works if not stick it in the bin. It also takes up quite a bit of space and i prefer high voltages covered up. I saw an Easitun 3 nearby for sale a while ago and should have bought it but i was looking at Bridgeports at the time.
Colin