I have stainless steel chimney caps on my house, but I had the chimneys redone and the covers no longer fit. The new brick was smaller. Now the caps are larger than the chimney. I had the originals made years ago and that place is out of business. I am thinking of taking a 4-inch grinder and cutting the stainless smaller. That would cut off the rectangular portion of the cap. I would then rent a metal break and remake the rectangular portion out of copper. I would then attach the copper to the stainless using rivets and silicone, or maybe solder the copper corners. Think this would work? I haven't done much metal work, but I did make copper flashing for my front porch and it came out fine. One other question. I cannot solder copper to SS, Correct? Thanks, Jim