I haven't posted in Sprockets because I haven't had a bike since joining the forum, but I do have experience on this topic having had bikes in CT and MA for 20+ years. Fluids prep, battery remove and trickle, Animal prevention things are all good ideas. Tires are only good for about 6 years reguardless of mileage, because the rubber drys out no matter what you do. How old are the tires?
Here's my tip.
Go to local storage/moving facility and get a plastic mattress bag (they're cheap). Put the whole bike in the bag on a dry, low humidity day and seal it up so there's no air exchange. The daily warming/cooling cycles that cause condensation increase the rate of aluminum oxidation and pitting of chrome etc. By putting the bike in the bag the heavy condensation forms on the outside of the bag rather than on the bike itself and since there should be relatively little moisture in the bag the bike doesn't get sweaty. Cover the bagged bike with a cover that doesnt let light through and use bunji cords to hold the cover and bag so they wont move in wind. The constant movement of the bag/cover can wear a hole through the plastic bag and can also dull paint finishes etc. by rubbing.
If you want to be a real nice guy, coat all chrome that doesn't get hot with wax, let it dry, and don't wipe it off before bagging the bike. Does a great job at protecting the chrome from pitting especially combined with the bagging. I have not tried it on painted surfaces.