Check craigslist for the storage barrel. There are usually some guys on there that will sell the 30 gallon and 50 gallon blue food grade barrels that were previously used for like tomato sauce or mustard for like 20 bucks. A quick clean and they are ready to rock.
I have a 55 gallon food grade barrel available in Lafayette. It's white in color. It previously held rice syrup. It's all cleaned up. I was using to store RODI, but don't need it anymore. $20