i took a old propane tank 5 gallon size and cut the top off it ... it is a very thick metal pot now .., and can hold hundreds of pounds of liquid metal . it holds @3 + gallons .. this might work for you too ,.. remove valve if possible, and flush ..be carefull on the first cut through the tank ( i used water and a battery powered drill ) that you dont cause a spark .. then fill with water to displace any gas , pour out, and cut away ... i have a 4'' grinder with a cutting blade ,,,worked great . ( eye protection needed) then use a campfire to melt or a turkey cooker ... awesome !! can do a about full 5 gallon bucket