Power steering question

[69C10Atl]

Hey guys It's been awhile since i posted, I hope all is well. My question is I am putting power steering in the 69 and I'm having a hard time finding the bracket for the pump. My alternator is on the driver side and all the trucks I've seen in the junk yard are on the passenger side. If I wanted to put a/c on the truck later should I go ahead and replace the water pump and convert the alternator over to the passenger side or can I just put the compressor on the passenger side later. I stripped the pulleys and brakets off the front of a 79 chevy with 350 and a/c, but would like to use the correct power steering braket for a 69. Any help would be nice and pictures of it installed would be great.