power steering
Off the top of my head since I just went the opposite direction on my 70 Swinger.
1. Steering box
2. Pump, engine brackets and longer bolts.
3. Power steering column or you might be able to shorten your current shaft. Can’t remember if the shafts are different diameters between the two as I have a universal joint with adapter in mine. I’m sure someone will chime in on the shaft diameter.
4. Pulleys and belt unless your crank pulley has the provision for two belts then just the belt.