I am in the R&D phase of building a trailer mounted smoker/grill to take tailgating. I have some of the pieces and a friend that is going to teach me how to weld (mainly using this project as the teaching tool). My problem is that I know what I want to do with it but I am not sure how to put it together to achieve this. The cooking chamber is going to be built out of a 5'x2' rolled steel pipe. I know that I want to be able to smoke and grill on it (most likely not at the same time, unless y'all can tell me a way to do so). Should I build a fire box on it and grill on that or grill in the main chamber when I am not smoking? Bring on the feed back and ideas!!! I am a rookie at this!