My wife and I live full time in a fifth wheel. Therefore, something like a jumbo joe is perfect for our needs. However, I like to smoke a good sized pork butt or brisket from time to time. I would like to increase the amount of indirect cooking space. My thought is to fabricate a charcoal ring similar to a WSM and then place a pizza pan or pizza stone over the ring so I can utilize most of the cooking grate. Has anyone out there tried this or something similar? I appreciate any feedback!