Hi all, my first post so hi to you all, I'm looking at building a UDS (not sure what that stands for) i call it a barrel smoker!! anyway my point is is there any details about builds?, i am a mechanical engineer and at work i can get barrels for nothing, same goes for ball valves etc, i could make one for nothing but i would like more details,,,,,Where do the ball valves go? what height, what height is the burner basket set at? what height is the grill set at, where do i position a thermometer? you see i like details/plans that i can look at understand and follow, Ive been looking but i can find no specific details, any help would be appreciated regards lee.