RE: Can I make the BBQ oven at home?
On the Food Network, Alton Brown built one for home use out of a terra cotta pot, a terra cotta lid (I think the little plate that goes under the pot), a hot plate, a pie pan, a round grill grate and a replacement thermometer for a gas grill. He said it cost less than $50. It's from the episode "Q." I've been wanting to try it myself one of these days.