Nice build! I don't know if anybody mentioned it yet, but you guys were taking about phase converters for your heavy home machinery...
Don't do it.
Get yourselves some VFD's (Variable Frequency Drive)... WAAAAAYYYYYY easier to work with, motors run cooler and you can do spindle speed adjusts electronically. I use one on my mill, and one on my lathe to run 220 3-phase off of 220 single phase.
You will NEVER look at a phase converter again.