MillRight 25" x 25" - $4199 in kit form plus shipping. The literature doesn't mention anything about limit switches that I could find. The kit does include a DeWalt router.

Avid Standard 48" x 24" - $5486 in kit form plus shipping. This price includes proximity sensors, router mount (no router) and Mach4.

Ball screw vs. rack and pinion - which is better? That may be open for debate.

If you budget is $4500, then perhaps go with the MillRight and let us know how it turns out for you.

If you are ok with spending an additional $1200 or so, then the Avid may be a way to go.

Please report back if you purchase either one of these and let us know how your new machine works out for you.

Thanks,
David