I have a homemade 5'×30" smoker with a 2'×2' firebox. It's about 25 years old and it's the only thing I've used. I'm planning on building a reverse flow smoker out of a 250 gallon propane tank. I'm planning on on building a one piece stainless steel firebox with a water pan that runs the entire length of the pit. The one piece fire box and water pan will bolt to the pit and help make this smoker into a reverse flow. I look forward to any help from those who have had any experience in building something similar with stainless and steel. My biggest concern is how to prevent galvanic corrosion between the two metals.