Forgive me if this is an un-necessary question, but is it vital you store it? Much better to drive it on crisp winter days. But, if stored, ensure power is available and keep a battery conditioner connected. Mine is a CTEK XS 3600. During the last four years the conditioner has been connected without fail each time the car is garaged, and it has never failed to start first time.
And I believe wisdom dictates that the hood should be up when stored in order to keep it tensioned and crease-free.
