You my friend are clueless on what I get and don't get. Km and Km2 have meaningless units, which makes them useless for any performance calculation. You gave some core loss info and Kv, so I commented on it. I didn't say anything about Km, which is useless to me exactly because it contains no core loss effects and is a dimensionless number, yet you're so fixated on it you go off on a wildly wrong tangent. I asked for resistance, which is a useful number and still don't have it.
No, no-load current is not phase current. No, I don't need hysteresis torque (why leave out eddy current torque, do you not understand there are two components of torque to overcome to spin a motor?), especially when I have no-load current, rpm, and Kv (or Kt). To reasonably compare motors all I need is Kv or Kt, resistance, and no-load current at a useful rpm. The spreadsheet is great in that gives us predicted efficiency (the only truly useful number capable of standing alone for motor comparisons, because it includes everything), and we can manipulate rpm and torque for detailed performance info as well as apple and apples comparisons between motors.
Do yourself a favor and lose this fixation with Km. I know you're excited that you came up with Km2 as probably a better number than Km, but all the number manipulation is leaving you seeing the trees instead of looking at the forest.