What center link to use for '67 conversion

[walker]

I about have my '71 disk brake front end rebuilt for my '67. I would also like to put in power steering from a later model. My '67 has the stock power assist ram, and the '71 front end I got was a manual steering fron end. As best I recall I can use the '71 manual center link with a new power steering gear and the steering arm from the power steering box. Is that right?
As far as power steering gears go I think I can use '69-'72 boxes, are any of these boxes the close ratio boxes, or are they all the same?
Also, should I use the master cylinder and/or proportioning valve from my '67, with power brakes or from the '71. I dont know if the '71 had power brakes or not, all I got was back to the M/C.
Thanks, Andy.