power windows

[T-P Auto]

I'm working on a 50 chevy pu that had the full windows,
Went with the smaller window n wing windows.
Want to put power reg in place of the hand crank type.
The hand crank shaft was rounded off so want to go with the power window set up.

Does anyome have any ideal which type of power unit would work in my 50 chevy?

All help would be helpful.

T-P Auto
Tim