I have in my possession, 2 drums which I am going to use to build my first UDS. This will be a horizontal drum smoker, the top drum is a 55 gallon and the bottom (firebox) is a 16 gallon. I had a steel frame made for me by a friend that I am going to set it on. I have some questions. 1) Grill grate. What material do i use for the grill grate? If I use steel grating, wont it rust? And if it does rust, is that a problem? 2) Heat Control. I am planning on using two pipes coming from the firebox up to the top drum. What can you suggest for me to get the best heat control? Where should I put my dampers so I can have the most control over my heat? Finally, if anyone who has ever made one of these things before can give me any suggestions at all they will be appreciated. I dont want to start working on it and find out Ive done something completely wrong.