I know that this maker has long gone out of business but we really like the stove and don't want to replace it. However, after many years of good service the baffle plate has finally given up. Since I have removed it before and rebent it to be flat, I know it is just a piece of sheet metal of some type. Since it is rebendable, I would imagine it is some type of steel. However, my question is what kind of steel would be appropriate to use? Thanks for any answer.