Early A body Magnum swap serpentine belt question

I have been reading a lot of the threads on Magnum engine swaps on the early A body ( 65 Dart ) I want to use the serpentine belt system that came on the Magnum. I would like to retain the power steering in this car, is there a pulley swap available or can I use the magnum
power steering pump ?

Thank you in advance for any help.