i have my "spare cabs" stored in a shed, but they are lifted up from the ground (at least most of them) - basically the same as putting them on a pallet. i rarely remove anything, sometimes the pcbs, sometimes the monitor, but most of the time i leave everything in the cab (although i had thought about removing the pcbs from time to time), because the temperature in there doesn't change too much throughout the year. what i would NOT do is wrap them up in some kind of bubble wrap, because you might get humidity in there which would totally ruin the cab!