Bill Noble wrote:
... Or, you can get a gear drive motor
and make your own (guys like me, and probably Iggy have such small
motors, ...

That's what I'd do (and probably will for my mill, when I get around to
it G). But, that's what I like doing, especially the figuring out how
to do it. YMMV.

And I'd use a DC motor and servo amp. See my power feed on my lathe:
http://www.metalworking.com/dropbox/ServoPowerFeed.pdf

Good luck,
Bob