manual to power steering conversion?

[wrapumup]

I did find someone who said he had done this, and should have emailed him directly since I can't find the thread now. Possibly shortie, something with an s I have just got crossmember with the disc brakes and steering box on it, supposed to bolt right in my 68, so I was told. Anyway looking for someone who has details perhaps on this. What all do I need? Not sure what year engine is, is a 350. I know I will need a power steering pump, what do I look for on engine bolt hole wise? Any help will be appreciated. If there is a thread, with pics would be great, let me know. Thanks!