There is a lot to it more than this brief post. A couple thoughts:
1. Yosemite in Nov. can be anything from gorgeous to snowy stormy and cold. I'd follow the weather prior to your trip, and if it is the middle of a stormy period change your plans and go somewhere lower in elevation. Plan this trip with alternatives in mind. You'll probably be able to pull it off at least half the time.
2. Make sure your RV has fully charged batteries before you enter Yosemite. Bring enough blankets the furnace can be set down in the 50s (or lower) at night. Try to park in the sun especially morning sun.
Lot more than this but my contribution :)