...so bottom line so far as I see it boils down to, if you want serious milling power (forget portable, stationary only) using electric motors you either have to be handy enough with electrical components to be able to build your own 3 phase power converter OR you need a motor that weighs a ton OR you need a huge generator capable of putting out more amps than your house service OR you have deep pockets and can afford a big HP motor/phase converter along with expensive cable thicker than a garden hose to feed it OR you happen to have a used golf cart in your garage that you might be able to use the motor out of for this thing... did I forget anything?
As much as I would love to saw with electricity, from a practical standpoint so far the numbers (both HP and $$) don''t seem to add up. If we're talking about a portable csm or small mill as the original post seemed to indicate, then it's a non starter as rail says.