Doesthis work? ie I would have thought it would be far to hard to skim rubber without it becoming rough in the process.

There are two places for cheap drivers and motors and cnc components and thats.......

Zapp Automation who's linkyou find here on the site.
The other is ArcEuro Trade,however this site only sells Steppers and their drivers but are cheap.

I wouldn't buy off ebay for mechanics of the build as I thought it was cheap once,its not unless you mean China?