I'm not sure if this is old news but I ran across this while I was bumping around the net. This is one nice cooking rig.
It can slow smoke more than 2,000 pounds of meat. Hidden beneath the 20′ hydraulic lid is a wood-fired 48″ x 120″ grill with the capacity to cook 1,000 hotdogs, 500 hamburgers, or 200 16 oz. steaks at one time.