I'd fill the gas tank as full as possible to help prevent condensation inside the tank. Yes it can happen even in a temp controled storage. Power failures do happen from time to time.
When you get back, push the car out of its storage space, and flat bed it home DON'T TRY TO START IT.
Disconnect the fuel line from the electric fuel pump, and the fuel line filter, then with compressed air blow out the fuel line from the engine back. Then with a new battery, just turn on your ignition and the fuel pump will drain out all the old gas. (so fill it up with reg. gas before you park it).
I'd install a new fuel line filter before hooking everything back up.
Installing old tires wouldn't be a bad idea, but if you over inflate the tires you have now and place a couple carpet remnants under all 4 tires, you probably won't have any problems.
Rodent discouragment is a very good idea. Trust me, I know.