I'm going to manufacture my own conical fermenter and copper boiler this summer. I really need some advice from those brave few who have embarked on this troublesome journey. I'm considering 11ga 316L Stainless sheet stock and and 11ga 172 Beryllium Copper at a 10 to 15 gallon capacity with stainless steel ball valves. Of course there is more to the process than what I listed but I would appreciate some advice or any type of heads up.