Thanks guys, I actually have a couple desiccant bags(Damprid) that I use for storing the boat. So I'll see if they offer smaller packs of them.
I did spray the cylinders with Fluidfilm and then wiped clean when I installed pistons. I plan to disassemble again and hopefully complete the build by spring.
Best rust inhibitors I have found in the retail setting is lps rust inhibitor. Its kinda waxy but not as thick as cosmoline. Not sure it would be good for short term (weekly) but if its going to sit for extended periods of time, good stuff.