I had an old pancake style compressor sitting in the shop, always in the way, so I made a lead pot out of it. It's heavier steel than a propane tank and built to hold 120+ psi so it ought to be tough enough. Right now it has about 80 pounds of range scrap in it but would easily do a hundred. The burner is from an old gas oven, and the base I built from an old steel chair and whatever scrap I had laying around. I left the handle on the tank so I have a hand hold to steady the pot while fluxing and dipping.