[RMcNeal]

That's a pretty detailed list!
If you prefer the compressed air method, you can still follow a similar process, except instead of using the pink stuff and the winterize port, I use the regular city water port and hook my compressor to it. Set the regulator to 40 PSI and go open each faucet and let the water and air blow out.
I put valves in the basement pass thru for the washer hookup, so I don't have to worry about them. I also put in a bottled water pump inside the coach for the ice maker, so the line under my slide is no longer charged with water, so no worries there either.