Sorry, gonna have to inject my two cents worth here! If "someone" wants new, go build it in suburbia (or as in-fill at worst)! If it's historic and not endangered, better to leave it the F___ alone than to try to make it "clean" and totally obliterate the signs of how it got from its origin to the present. I personally don't care if its an "A", a "C", or a "P"; the damage and loss are all the same. That said, I'm not against maintenance and care, I'm just against trying to make something with a history to share look too sanitary. Buildings develop patina just like furniture, and that needs to be maintained without destroying it. Tom Gray