That sounds like a good procedure. The only thing I would add is to the end -- after you have topped off the power steering fluid, make sure you bleed the system. This is done in two steps:

(1) After filling the PS reservoir, and before starting the engine, turn the steering wheel lock-to-lock slowly several times until you don't see any bubbles when looking into the filler tube on the reservoir with a flashlight. Disconnect the pitman arm from the drag link before doing this, otherwise you'll be fighting the friction between the tires and the ground. On a new pump or steering box, this may take up to 20 cycles, but it shouldn't take near as many on yours. When doing this, make sure to keep the reservoir topped off (but don't over fill).

(2) Then start the engine, and essentially do the same thing. You can hook the pitman arm back up to the drag link for this step, because the power steering will be helping you turn the wheels.