Does anyone have any idea where I can get roofing tin (used is fine) for less money than what the Big Box stores are asking? I want to put together some raised garden beds this year, using roofing metal. I've asked a couple of local roofing companies and they either don't keep/resell it when they are working on client's roofs, or charge more than Home Depot. I am not looking for a massive amount, but my budget isn't large, either.