Motor Home/Trailer as a back up home.

Last night we had a two hour power outage and it made me think even more. 

1. I am on oxygen at night so a power outage means switching to my emergency oxygen bottle, which will last about four hours.  Four hours is just enough for a recharge to my blood stream but if the outage lasted longer I could be in trouble.
2. In our motor home. I will have solar panels, 1000 watt pure sine inverter and a battery bank so I can keep my oxygen concentrator and CPAP going for a few more days.  Plus, it has a generator that could add a few more days (needs gas) if needed.
3. If the weather gets cold out I could be in trouble.  I only have enough propane for the heater for a few days tops. 
4. I have just over a 30 day supply of meds.
5. Big problem with the motor home it is currently in the shop! So for now I really have no backup.

Now back to the house last night.

1. Once we flush a toilet it can stop working if no more water is in the tank for the flushing action.  We have a bucket and trash bags, thankfully we did not need to use them.  We could also dig a pit in the back yard, but the city would not be happy with us.
2. Water, we only have about 8 gallons of water so for two of us it could last up to 3 days.  If we use a gallon in a bucket to flush the toilet each time it will go much quicker.
3. We also had to remind each other not to open the refrigerator till morning.  You only get about two quick openings before you lose the cool air in there.  With the freezer you may get several quick openings because of ice build up.

What if this outage would last several days?