I lost my power steering pump while my car was apart.. 67 R/T convertible with the original 440.

The "hemi pulley" thread got me thinking about this again..

I have purchased 2 or 3 pumps and none of the belts line up correctly..

My questions are:
Are the big block power steering pumps different than the small blocks ( I know the brackets are)
Or are there a bunch of different pulleys being used.. any help??