After lots of surfing for a Sieg X3 (no Super X3s for love or money) the Grizzly G0463 Mill / Drill at
I looked at the Rong Fu RF-45 and other similar models. The Sieg has a lower overall height, which makes it a better "fit" into the available space. Also, about 400 lbs for the X3 vs. about 800 lbs for the RF sorta shades my view.
Thanks for the comments, even though I'm unable to take advantage of all the advise.