Should have told me what you were doing and I would have bought shares in a vise grip factory. Pretty neat work. Time consuming I bet. What is a sheet of SS worth. I would be happy with a flat pan right now and then figure out how to put tube flues on it later. I am wondering if a person could get 1/2 or 3/4 SS tubes and then bend and weld the ends to the pan. Hope I don't get old to fast and forget all these ideas.