I was glad to see the camphor comment. I was told by some old timer that machinists would keep a piece of Camphor wood in their boxes to help keep rust down.
Ok, from me; install Central air and heat and maintain a constant temperature, cosmoline everything, move.
My garage is part of the house's central HVAC. Here in NE Kansas, if I open the garage door the garage sweats up in about 0.002 seconds. It only happens in the spring because of the difference in temperature and the humidity. I figure Ohio would be about the same.
My shop is not central HVAC. I use liberal wax and light a fire in the wood stove if the humidity is up and the temps are fluctuating a lot. I still get rust.
Dave.