I've gotten so I like the plastic ammo cans. I have the 30 cal size, and the Fat 50 size.
I like both. I'm not so keen on the regular 50 cal.
I use them for ammo storage of course. I have one with a 12 amp/hour battery I use in my boat to power the sonar units.
I live out in the country and have mouse issues. I store stuff I don't want mice getting into.
I think a can ox this sort would work for what you want to do.
Some of the fancier ones have trays inside as well as storage compartments built into the lids.
They are not as heavy as steel cans. I have some of those in the fat 50 for ammo.
Leo