You're a brave man loraine!
I have done all of these repairs, but not all at one time. If it were me, I would work through the a/c work and get that all sorted out, drive it at least a few days and then put it on the lift and attack it underneath, but that's just the way I approach things.
Having the patience to do all of this at once is a testament to your mental stability as opposed to mine.
Have you ever had the dash off of one of these before? If not, I would reccomend that you print out the applicable sections from the FSM and keep them close at hand.
What helped me on dash work was as I took off a subassembly, for example the airbag and steering wheel, I set it on a table with the associated fasteners, then the next thing I took off I set it next to the steering wheel and so forth in order. Then when I started back together with it I went the other way down the row of parts.
Also when I did my dash work, I put the car on the lift and raised it to a level where I could stand next to the car and reach in for certain things, but the car was barely low enough to easily slip up into the seat for other operations. If you don't have a lift a tall set of jackstands should get it high enough for this. The key is that it prevents the need for being upside down under the dash which is never comfortable for very long.
Also, it is possible to do this with the steering wheel in place if you lower it all the way before disconnecting the battery, but if you follow the instructions you can have the wheel off very quickly and it's really nice to have it the heck out of the way. If you do take off the wheel, DON'T let the steering wheel simply turn against the lock pawl while you are breaking loose the steering wheel nut. You can hurt the locking pawl. Just grab the wheel to oppose the force of the wrench loosening the nut.
Best of luck with it and keep us posted in a single thread as you progress. Of course that might be what you started this thread for.