Hey Barry;
I'm using 381 oz-in steppers the same ones I have on my SX3 mill. I see that you got you cross slide ballscrew inside the crossslide, I just mounting my to the outside for now to get it up and running. Also just going to drive it off the tailstock end for now too. I kinda screwed up turning down the ballscrews didn't get a decent cut or finish on them, so may end up replacing them later and using the bearings I got instead of stock mount. Been keeping my eyes open for a DC spindle motor but looks costly. May just end up getting a Mini lathe later to do threading opps.
Its not going to be the way I want it to begin with. I just need to get it up and running for a few turning projects, then I'll tinker with the more complex mounts and bearings. I try annealing the ballscrews, but that is some really tough crap to cut.
Got rained out at work today, so I'm going to try and get the stepper mounts milled out.
Thanks for the pic of yours will sure help in the future when cherrying my out.
Matt