I'm doing the yearly maintenance on my p23i and took the combustion motor off of the housing. I noticed the gasket has seen better days and I'm in need of a replacement. This is the gasket that seats between the motor and the housing (not the housing and the stove). The replacement motor is a A-E-027 if that helps. Are there any good online sources from which I can acquire the gasket? Or, can I use some gasket sealant (RTV?) and use that in place of the stock one? Any help or tips are appreciated.