Reuse a water pump from a parts car?

... Nothing will interchange between the two styles. Different timing cover, damper, pulleys, accessory brackets.
Not a simple swap
I 2nd that. I changed my 65 Dart 273 to the later aluminum water pump and had to get creative with pulleys and belts. It is also 1" thicker, so no room to install a fan clutch. I also had to change from the TRW to the Federal power steering pump, since no brackets exist to mount a TRW to the later water pump.