What parts do I need for steering?

Hey folks

I have a '73 Plymouth Duster that's literally a rolling shell. I'm as amateur as they come so it's going to be a huge learning experience. The first thing I'm going to tackle is the steering but since I have no steering components (I mean absolutely none. No steering wheel, no column, etc.).

So I was wondering if anyone could tell me what all the parts I'm going to need in order to make the car steerable. I'm thinking about going with power steering as well. If anyone can help, or point me in the direction of any websites that have part manuals I can download that'd be great