Looks like you have a Saginaw pump from a later set up, possible slant 6. A 65 most likely came with a TRW pump - looks a bit like the Federal pump from the late 60's - early 70's. That's not to say your pump won't work, although I did not see a pulley on your pump. The saginaw pump is actually a better, more reliable one than either the TRW or Federal pump. You need at least a 2 groove crank pulley. Nothing wrong with the power steering box you have, just from the look of it. If you don't find your answers here check out Slantsix.org and they can set you up.
Slant Six Forum