Manual to Power Steering on a 64' Valiant

I'm looking for advise on converting my manual steering to power steering on my 64' Valiant w/a Slant 6. Have any of you guys made such a conversion? I'm new to this forum, and I woul dappreciate any advise from someone who may have done this before... My engine is out for paint and body work, so now's the best time for me to do this. The wife wants to drive the car, and she requested this change, I'd like to oblige her.
I'd like to know hwat parts were used, and any mods that might be needed. Thanks very much in advance for your help!