In addition to building a layout, I am building a bbq/smoker to (somewhat) resemble a 4-8-2 steam locomotive. I am using three 55 gallon drums (all given to me) for the "boiler" which will be the cooking part of the bbq grill/smoker. I found a website with the 1522's statistical data (for measurements) http://www.frisco1522.org/statchart.htm. Since the largest part of the 1522's boilder has a diameter of roughly 94" and the drums have a diameter of 23", the scale is roughly 1/4. Using the statistics chart, I divided all the necessary measurments by 4. I have already finished the "boiler" and cooked with it several times. Since I only wanted to use the front and middle drums for cooking (the 3rd rear drum is just for scale length), I cut the two drums in half (end-to-end), cut out the ends where they would be connected, hinged the two halves of each drum together, sanded, sanitized, and painted the drums with high-temp black grill spray paint, and attached a stack. I was also given a smaller (40? gallon) drum which I cut in half and use inside to catch ashes in order to prolong burning out the "boiler" and thus add to the life of the grill/smoker. On fathers day, I found a couple of guys who got new grills as a gift and were getting rid of there old ones. I took them and my plans are to used some of the parts for my project (kit bashing if you will). When I finish the project, I will post pictures. Thanks for reading! Ship (or in this case, "Cook") it on the Frisco.