I have a 500 gallon fuel tank that I'm considering turning into a smoker since my old stick burner is getting, well, old. I notice on my 30+ year old smoker that the area next to the fire box stays considerably warmer than the opposite end and there's about 25-50 degrees difference top to bottom. Has anyone ever experimented with putting a fire box on each end and running the smoke stacks out of the bottom center? I figure that way it could pull smoke up over a firewall on both sides then down and out the stacks at the bottom. I could be way off base here but was just wondering what people thought. Any advice or pictures of similar projects would be greatly appreciated.