The DX hatchback automatics came with power steering. Many VX's came with A/C, especially in California and possibly other states like Florida.
To swap in power steering, you need the PS rack, pump, lines, resevoir, lower crossmember, and the U joint that connects the rack to the steering column. Doing so will drop your freeway mileage about 4mpg.
The cars that came with power steering have what's called an idle-up response to load put on the motor by the PS pump. There is a similar feature for the AC. If you're idling and you turn the wheel slightly, the engine will bog down a bit and the rpm's will drop before the ECU can respond. In an extreme situation the engine may stall. So there is a little sensor in the PS rack that detects pressure and increases the idle speed in anticipation of this added load. If you do a conversion you will not have this feature because the P07 was never intended to be paired with power steering.