quick question. my buddy that got me the 1/4 inch plate hasn't been able to get any more yet but I spoke to our factory rep that got me the I-beams and they cant get me the 1/4 inch plate but can get me a 1/8th" 7ga 4x8 sheet for $100. is that going to be thick enough for a fire box? they get 3/16th but its more than twice as expensive and cutting it with a grinder will take me several days and several cut off wheels. what are youll's opinion about the 1/8th"