Hello everybody! I'm building a reverse flow smoker, at first I was going to use a 400 gal tank, then I decided to build it it out of 12ga steel. I've been reading about the thickness a good smoker should have and I'm having second thoughts about the 12 ga. Is it thick enough for a smoker that size ? Will it bend in a couple of years? I have a catering business and I'll be moving it constantly. Should I use a thicker material?