Considering your husband's mobility issues, I can make a suggestion if he would be open to it. You are choosing to stay at CSR which is huge. Animal Kingdom Lodge is gorgeous, its all contained in one building and you can get room discounts through the military (of course you can with ALL on property rooms). I would strongly urge you both to rent an
ECV. Many use them who normally walk around a lot but have limiting factors like rheumatoid arthritis or MS. It will greatly improve your range of activities.
A great day for me at WDW would be, wake up and make coffee in my room, head to an animal viewing area (if I didn't purchase a Savannah View room, which is not really necessary) and enjoy the animals while I sip my coffee and relax in the morning. Head back to the hotel to shower and get ready for the day or maybe enjoy a morning swim at the pool. No need to rush, I am not commando style touring. I then might head over to DHS to ride Tower of Terror and Rock n Rollercoaster, by this time it is probably noon or later. Next I stop in Tune Inn Lounge (near 50's Prime Time restaurant) for lunch and perhaps a cocktail or two. They serve the full menu at the bar. I might then leave DHS and head over to either the Boardwalk or Epcot. I am headed straight for World Showcase. I will check out a couple of countries, try a couple local drinks and then head back to my hotel. Late afternoon swim, get ready for dinner, go to Victoria falls for pre-dinner totties and then a lovely dinner at Jiko or Sanaa. After dinner possibly going to the night vision viewing areas to watch the animals on the savannah at night.
That would be a wonderful and typically relaxing day for me at the park. I will give more examples this evening when I get home from work.