The "best" checklist is yours. It is possible to take the ASOM(Airstream Owners Manual), work through your AS multiple times. If you have help who can type, ask them to take notes as you carefully process through each sequence.
Most important now would be operation of each system. In the ASOM you will find water (fresh, waste, hot/cold/filtered/12VDC pump/external source), 12VDC supply, converter, battery maintenance, external electrical, etc )
Your own current and developing knowledge of these basic items will drive the depth of detail....here is where a "checklist" becomes personalized. If a step says "check tires" or "check converter, is that enough info for you to know the process "by heart/memory"? If so, all you need are simple listed items.
Now, this may prove interesting reading after you use the AS a few months. May even bring a chuckle or two.
Enjoy the journey!
Peace and Blessings..