Wouldn't that be almost like a Bandera? Your biggest problem will be getting the heat evenly dispersed in the smoke chamber. The heat will want to go up the wall closest to the fire box.
Team: Pyle's BBQ; Yoder YS640; Good-One "Trail Boss" 60T; Weber Kettle w/rotisserie ring; Big A$$ Rotisserie; Weber OTS; New Braunfels offset smoker; Weber Smokey Mountain; Chargriller Akorn.
Saddles BBQ Bistro