Power Steering Pump differences

Id like to run a Saginaw Type 2 pump but it seems like no one makes the brackets for Mopar. I hate the old Saginaw pumps I have had nothing but problems with leaking/weeping pumps over the years.
Chrysler used the later pump up into the 80s on LA motors. I don't know about your part of the world but in the States you can score everything you need off trucks + vans at the junkyard. Mine came off an '85 Fifth Avenue.

And GM used the same pump at least into the late 70s.