I am looking to have a stainless chase cover fabricated to cover my 27 x 36 in wood framed chase. The cover would be the typical design with a cross break, 2 in collar, 6 inch side skirt and drip edge. Two companies that come up in my search are rockfordchimneysupply.com and firesidechimneysupply.com . What company would to recommend from these two or others ? TIA