If you only mean "Motor Cost" then it will be #5 approximately and if you want to include Batter for Motor then the cost will be increased some around $20.
You can but the motor may not run, however you will not burn the motor.
Yes, but the motor's horsepower rating will not be reached.
Use a transformer.
You can not change it. 440 volt is by design. However you run it with 220 single phase supply, but it would run far lower power.
Yes a 208 voltage motor will operate on 220 volts. You have to increase the motor overload protection by 10% of the motor's full load amperage to protect the motor.
expecto patronum! ~:)
It could if you don't get the terminals and motor wires on the correct terminals.
Yes.
16A
It is not advisable to run lower voltage motor on a higher voltage.
The difference in voltage is a minor detail and the power used depends largely on the mechanical load power on the motor.
read the name plate on the motor