Working on a 1950's fridge smoker conversion. I want to use Roxul for the insulation but can't figure out which product to use. Home Depot carries 2. Roxul Safe 'n' Sound and Roxul Comfortbatt. The Safe 'n' Sound they have in smaller packages but the Comfortbatt is only sold in pallets that cost around $475. Is the Safe 'n' Sound ok or should I look for something different? Also, my plan was to paint this red. I planned on using epoxy spray paint but I can't find that in red. If I would use non epoxy paint, will I regret it later? Any other kind of paints that people use that have lasted? A big thanks in advance!