Top 5 worst A-body repairs/restoration jobs
From your list I have only done the steering box. What a detailed job that was.
Remove front seat, Remove steering column. Under hood was disconnect headers, remove P/S pump, Battery and Tray. Than you can disconnect the steering box from pitman arm. Now those 3 bolts to remove the steering box than lift from the rear and roll over the top of the K member and remove. Now do everything in reverse order and your done. How easy does that seem?
Of course in the middle of all of this you cam clean and paint the drivers side of your engine compartment and sound deaden and insulate your interior because all that other work wasn't enough. But wait this is a hobby and we enjoy working on our Mopars.
Removing the dash scares the crap out of me.