As for me I will check out home brewery supply stores for white food grade buckets (used as fermenters) and maybe Mylar bags and oxygen absorbers and also 5 gallon polyethylene barrels with a spigot for water. I'm not sure where I could find other food grade stuff like giant clear plastic bags (maybe like food grade barrel liners) to use as transpiration bags in the food industry... I'm considering it anyway.

Frankie

"Any suggestions on how to get them cleaned out real good?"

Well, I wouldn't set an unwrapped sandwich in the bottom of one, but I'd think canned goods would be safe enough. No worse than the basement shelving where I currently store the cans.