I purchased an old Weber gas grill with the intention of using it for my new smoker build. I'm thinking of cutting the top of the case flush. The drip tray will sit on the grill grates. The gas controls will be accessed from the side of the smoker. The bottom of the grill will be left open for safety purposes. A tube smoker will provide the smoke. Steel studs for the frame, cement board, and aluminum will line the interior. I think it will work. I was looking to see if there were any other builds using an old grill. Thanks.