With all the fantastic help I received on this thread, I wanted to provide an update on the plan we ended up with -
- Picacho Peak State Park campground - Dec 10-15.
Farther from Tucson than we preferred but is close enough. Seems to have good hiking. It has a Pay-as-you–go ($3.99/day) from a third party provider. Reading a comment that "Airebeam wifi was lightning fast" one one of the websites from a camper resulted in us settling on it - as this is a partial working week for both of us and good internet connectivity was of critical importance to us. We plan visit the key Tucson attractions and hikes from here (about 30-40 miles away) as well as hike locally.
- Bonita Canyon - Chiricahua - Campsite 11
- Dec 20-25 - KBAR-2 - Big Bend backcountry
- Dec 25-28 - Croton Spring 2 - Big Bend backcountry
Still undecided about the return path. One must visit location is Bosque del Apache National Wildlife Refuge (still looking for the best campground around that...
The part we are most apprehensive about is winterizing strategies and camping while winterized. We are thinking that on return - we will winterize in Las Cruses, NM before going up towards Albuquerque and into either Utah (the direct routes) or NV if we go via Las Vegas (to minimize winter weather, depending upon forecast). We could delay winterization based upon the forecasts at the time but will have to tackle that regardless.
So far, we have never camped with a winterized camper and we will likely have an extended period of that regardless of how we do it. So, that'll be a new experience.
Once again, that's so much to a number of people who have given me very valuable advice on this thread.