Welded up the last mount as a test for the welder. Went really well. A bit of spatter, but not too outrageous. I am quite happy with it, even without shielding gas.
So, I re-wired it for 208v (so nice to have a high enough quality welder that you can actually do that), and made it a home. Unfortunately, it wouldn't fit on my undersized/cheapy welding cart with the handle on, but I don't see me packing it up to use it elsewhere, so I'll live with it off for now.
Here she is...
Ain't it cute?
I suppose I should have taken a pic of the weld/mount. Appears I have my priorities backwards!