Installing Power steering on my 1967 GMC

[sduckworth13]

I have the power steering gear box off a 1974 Chevy 1/2 ton truck grinded down and I'm going to apply my primer coat and paint it tomorrow. I still haven't bought my crankshaft pulley, engine mounting bracket, or pump for it yet. I have a 1967 327 in my 1967 GMC 3/4 ton and my alternator is mounted on the drivers side of the block.
1. What pulley will I need?
I've seen somewhere somebody used a big block three groove pulley
2. What type of bracket? OE or aftermarket
I seen some suggest a OE bracket, so it doesn't interfere with the alternator bracket.
3. What pump do I use? hope thats not a dumb question
I am doing a disc brake 5 lug rotor conversion just working on a section at a time though, figured I'd like to get the power steering in first since it's the least time consuming ( I hope ).
Thanks,
Scott