I have come into some 316 stainless steel sheets and thought about using a piece over the opening of fireplace where stove currently sits. I have done insulated block off going up chimney around liner already. I thought maybe I could get more reflective heat off the stove by moving it out 6" and installing custom cut ss sheet behind it. I would drill out hole for flue then split into 2 pieces vertically for easy removal to clean liner. Any thoughts