more series I questions

Hi guys,

I am looking for some suitable Nema 42 steppers for my newly acquired
series I machine. The machine I purchased didn't come with the
steppers. In my searching for suitable steppers I have run across
some Bodine steppers on sale and here are the specs:

Bodine 42X2BEHD
Stepper Motor 1.8 deg. 2-phase (8-wire)
Rated Voltage : 3.6 VDC
Rated Current : 6.1 amps
DC Resistance : 0.59 ohms
Holding Torque : 1125 oz.in.
Body Dim.: 4.25 in Square Flange (NEMA 42 ) X 8.872 in. L
Shaft Dim. : 0.500 in. Dia. X 1.25 in. L

I called Bodine and the gruff gentleman on the phone said he couldn't
tell me more without the serial numbers to the motors since they were
specially made.

I know the original series I motors were rated at near 1800oz/in.
From my general observations and mental calculations I believe the
original motors are overkill for my applications, which will
primarily be milling out small aluminum parts for experimental
aircraft. In other words, I'm not needing to push a 1000lb mold on
my table at 120ipm. So my questions are, will these motors have
enough torque for my applications? Is two-phase a problem?

The other thing I am questioning is the voltage. Will G210 drives
work with these motors since the drives are rated for 24-80 volts?
Could these motors be driven at a higher voltage?

Thanks,
Bob