im in search of a used propane tank to build a smoker with. im looking for a 500 gallon and have called every place i can think of, and searched craigslist, and still come up empty handed. any ideas where i can get a hold of a tank? im located near flint but willing to drive for the right deal. p.s. sorry if this isnt the right spot, didnt wanna post in a general nation wide area.