I have a 3.5' x 8' grimm arch that needs to be re-tinned, the grates are perfect, the fire brick are good and were numbered as they were remove and are packed in 2 pallet boxes with a diagram for re-installation, also includes complete 16" stainless steel stack with stack cover. If this might help. Call 518 755-4841 This arch could easily be changed to 12 by just replacing side rails before re-tinning all for $1,000.00'