Below is a plan I've put together. It's actually a combination of a few different plans. The horizontal chamber will be made of two 50 gallon barrels. I also want to add a vertical chamber in order to be able to do more volume. For practical purposes I need to put the main smokestack on the far side of the horizontal smoking chamber, and I would like to keep the firebox towards the middle of the unit if possible. I have few questions about this design. 1. Do you think it will work? 2. Will the horizontal chamber be warm enough, and if not, what could I do to make it warmer? 3. Will the airflow through the vertical smoking chamber be sufficient? 4. Is the central firebox location ok? And if so, should I seal off the area to the left of the firebox inlet (where the drain is)? 5. Should I extend the main smokestack down into the smoking chamber a bit, and if so, how much? This will be my first smoker build so any other suggestions would be greatly appreciated. Thanks.