Given the "hackfest" nature of this build, I went ahead and ordered this for the twin-screw axis:

https://www.ebay.com/itm/US-Ship-1ax...72.m2749.l2649

Says 1090 in-oz. (I get 7.7 Nm) and 4.1mH inductance. My intention is to mount it underneath and between the 2 ballscrews and come up with a timing belt arrangement to drive both from one motor. If I can get the Y-axis moving under power, it will give me encouragement to drive forward.

Thanks,
Wallace