OK, so I found a 60 gallon air compressor tank in a junk pile, and I was wondering if it might be a good tank to use for a smoker build. If so, what would be the best/optimal use for it - vertical or horizontal reverse flow? Its about 20" in diameter and 36" tall - not including the ends. I was originally looking for a 100 to 120 gallon propane tank for a build, but I decided that might be overkill for what I do. Once I started thinking about a more modest build, the air tank kinda stood out. I'm a relatively new smoker, and totally new to building (but I am fairly handy with a torch and welder) so I'd really like to hear what you guys would be the best use of the tank. Thanks!