Ok - so a church member has offered to give me this old propane tank. I've wanted to try my hand at building a smoker, though this is quite a bit different from my "visions"...LOL Anyway - My dad, who is a retired metal building engineer (so he has some planning/drawing/creative ideas) said he is "in", so I'm looking for some ideas. I don't know the dimensions - I just saw it from a distance a few days ago. I think it is either 150 or 200 gallons. Anyway - my welding "skills" - lets just say I will need to do quite a bit of practicing before doing any real work on such a project! So - my original thoughts on building a smoker from propane tanks was a more traditional cook box + fire box either side-by-side, or firebox under design. But with this??? Door designs? Cooking surface? Firebox internal or external? chimney placement/design? Or should I come up with some kind of gas-operation version? Man- I am absolutely WIDE OPEN to suggestions, though $ supply is rather low. And yes, I'm pretty aware of the dangers and precautions involved in working on a gas tank. I don't plan on jus hacking into it!!! LOL Thanks in advance for any ideas!