Finally got a response to my request for information and/or an owner's manual for the motor...

Chris,
This motor was built prior to 1972, and with the "MOD" at the beginning of the model number, this means the motor was built as a MOD and one time build. We are unable to support this motor in any engineering sense. I am sorry for the inconvenience.
That kinda bites. Anyone know where I'd pick up a power cord for this thing?