As others said, the McNaughton isn't lathe specific other than the post length and diameter for the turret that holds the knives.
If you're considering buying an older set, I've found that some of the older knives don't fit properly in the new turret... The spacing between the pins is different.
The other concern about used knives is that the knives may be bent. Often the used sets are offered up by folks who never really learned to like the McNaughton, and often it's because they bent the knives at some point which makes them pretty tough to use.