Seeking recommendations - New heater blower motor

1967 Dodge Dart 270 w/o A/C - in the process of restoring the heater box with a kit from DMT and an aluminum core (the old core barfed many years before I got the car, as was evidenced by the rust through the spot where the floor meets the firewall on the passenger side).

The blower motor works ... but it has exterior rust and looks like garbage. I'd like to get a new one since I can't have the case for the motor powder-coated (I assume the heat would kill whatever is inside, as well as the wire insulation on the outside).

Any recommendations for a new blower motor before I pull the trigger and buy what I see on Rock Auto?