I know Puff made a cold smoker out of one of those. I think it would work out except for where the heat hits the wood coming from the FB. I don't know how well it will hold temperature in the CC. Seems like it would only cook from the ambient temperature created from the draft. As it wouldn't have a additional help from the radiant heat of the steel.
Making memories!
Current Smokers: Backyard RF Offset and Hybrid RF Offset trailer rig with Cowboy cooker and fish fryer, always room for more........
I was thinking along the same lines. You'd have to connect firebox to barrel with maybe stainless steel pipe top prevent it catching fire, and as for radiant heat, maybe that's why I've only found vertical ones since heat rises itd stay hot, as vid attached above. I really like the look and idea though