Thanks. Must say it is the first time anyone has ever asked me about my costs. It can vary widely, but the gas bag tank I start with run from $80 and UP. All of the brass and copper on a piece were bought from antique stores, ebay, junk shops, goodwill, etc. I have paid a fair amount for some of the pieces. The brass fans used on some can be $50 and up. Total costs in materials averages $400 to $500 plus. Each piece takes me from 60 to 80 hours in the shop. One of the great thing about working in metal is no time is lost waiting for things to dry or harden. Working on a new one that is rather different from my others. I will be posting more. Thanks again.