7 months in Arizona should be no problem at all except maybe too much heat. I assume it is in a garage?
Fill the tank (Stable is optional for 7 months), Disconnect the battery like you said is a good idea to prevent fire in case something shorts. It would be beneficial to connect the battery to a battery tender or something similar. Up here moisture in the interior is an issue causing mold and it is fixed with an air dryer but I don't think down there it would be a problem. Maybe someone from a hot climate will chime in on that one.
Oh and some rodent poison around could not hurt either.
Last edited by Eric S; 01-01-2013 at 03:14 PM.