I haven't read through this whole thread, but you want a plan in place. NOT ONLY FOR YOUR DEATH!
Last year I was perfectly healthy on a late January Friday, Sick with the FLU on Saturday, Admitted to the Hospital on Sunday and in a coma by Monday evening. It all happened so fast, I, nor anybody thought about my eight freshwater fish tanks.
Long story short, I was in a coma for three weeks and couldn't communicate for another week. By the time I was able to communicate, four of my tanks had crashed. By the time I got home, I had lost well over 100 fish, and six tanks. Within the next month, I lost all but one.
I shut down my fishroom, cleaned tanks, admittedly shed a few tears and seriously thought about hanging up the aquarist hobby. My wife, however, encouraged me to pick it back up because I do enjoy it. However, this time as I build, I am making water changes and regular maintenance SUPER easy and ALL CARE instructions will be shared with my wife and someone locally who also has tanks with an agreement to help each other out in such an event. I am in the re-building process now, but I will not add one live creature to my tanks until such an agreement is in place.
I learned the hard way.... If you are reading this, You don't have to.