I'm putting a very small woodstove back in an old mobile home. Took it out last summer with plans to replace it. Decided to save some and just reinstall. We removed the hearth pad and heat shield for the wall. Not concerned with inspection but do want it safe. So, can I simply nail up some sheetrock on the wall for protection behne the stove since I hear it it fireproof? And, can I just lay down some backerboard and glue tiles on it for a hearth pad. It doesn't need to look good - just be safe, functional quick and cheap. I may replace the entire setup next fall, but also might remove the mobile.