Took the first step towards building my shop

[metric_taper]

in its new home inside the Allied moving van/ machine shop van

I have a very cheap China copy of your lathe. Same size and weight. Replacing the original 12" 3 and 4 jaw chucks with Bison, and Pratt Burnerd brands made all the difference. D1-8 spindle taper. My user name came from this lathe, as the manual say's the internal bore is MT#6, which is absolutely wrong. It took some figuring but it's a 90mm metric taper, which I still need to fix the #4MT adapter slug as it was machined wrong from the factory. The minor diameter is .004inch smaller then it should be, so it rocks in the taper. Feels like it's home, but it's not. These metric tapers are some sort of DIN standard. More irritating, you can't get the specs without buying them, like everything DIN.
I have a #2 Rockford horizontal Miller. 1930s era originally overhead line drive, but it came with a Lima conversion (bolt on kit with Ford model A transmission, and 3 phase motor). Sadly, it never gets used with the Wells-Index vertical right next to it. That and the #9 Brown and Sharp spindle taper has limited tooling. I would get rid of it, but it is stuck as the first machine in a long 8x30 foot machine shop location. And I can't move it past the other machines like you've done. For the age of the machine, it has power feed in all three axis.