My vote would be for another UDS...maybe do a Big Poppa so you can grill sear as well as smoke. The double barrel would look cool but not be near as efficient.
Turkeys/chickens will fit spatchcocked fine or upright with flat lid if your cooking grate is down to about 8" from the top.
Cookers: Creator of Octoforks™ Rotisserie System
Mini WSM, Jumbo Joe mini WSM aka Jimmy w/ CB Roti & Meat hanging ring, 22.5" kettle w/ CB kit, Creator of the world famous 007 Super Grill Smoker Roti
, Big Poppa UDS, gasser grill and Weber 22.5" kettle w/ CB Roti
Official 007 Thread: "007" http://www.bbq-brethren.com/forum/sh...d.php?t=231293