Just stay away from aluminum....like the aluminum turkey fryer pots. These may work for a awhile, but you run the risk of pot failure. Are you going to be smelting WWs in this pot or casting out of it? I smelt my WWs in a large cast iron pot. Pans are too shallow and your run the risk of splashing lead where you don't want it. You also need to be able to stir and flux it well, and this may be difficult with a pan. Any homemade pot made of steel should work, as far as I know, as long as the steel isn't to thin. Cabelas sells a cast iron pot and turkey burner combo deal. It is kinda pricey, but it pays for itself pretty quick, and is everything you need except for the propane. As far as a casting pot, I use a Lee Pro 20 pound bottom pour pot. It is cheap and it works, but will have the occassional drip...which can be fixed quite easily. Good luck!