I'm gonna finally do some work to the smoker today. I'm gonna try to get some shelves in it and hopefully put a 2 or 3 inch slab of concrete in the bottom. This will be insulative as well as assist in maintaining consistent heat once it warms up.
I'm planning on forming the surface of the concrete so that it's serves as the drip pan as well. I will put a hole in one side and let it all drain to the hole.