G'day BobHi Greg,
That's a whole lot of work for one chimney and just too much for me. I think I'm going to stick with the stock chimney on my RC but use copper flake to cover it. I saw one build log by Doris (paper modeler) who scratch built her RC out of cardstock and she did it so that it looked like it was made of pottery. Who knows how it was really made. I like the copper idea better than pottery though.