I have been lurking the last couple days trying to figure out my build and could use some help and deciding how/what to build. I have been smoking on a very old weber kettle. The problem is the legs rusted out and the bottom dampers are basically gone which makes controlling heat difficult. My thinking has been to re-purpose the kettle by making a fire box below it and cutting hole in the bottle of the kettle. Making a fire box out of a metal filing cabinet seems like a good idea because I can pull the drawer out to add coals/wood. Is this something people have done or would work. Am I better off building a mini-WSM and just reusing the lid and parts from my kettle? With that build, how do you add more coals? Thanks for any direction. The weather is turning here in Michigan so I am looking forward to smoking some meat.