Hi Lou:
It sounds like you've put some thought into you planning for back up. Good thoughtful consideration.
I think of back up in the sense that every possible thing I've planned for the day goes out the window for some reason. Now what? So, I 've found that easy to use, pull down from the shelf activities that are very low tech and can used in any environment on a moments notice are the most successful. Perhaps your plans are similar.
Regards, Barry