Over rev figure out what thickness you want I have alot of 1/4 1/8 and 1/6 at my shop. I have built alot of things just not a fuel cell so I am not shure how thick. For price whatever is fair I will look into it tell me what its worth to you and we should be able to come to an agreement. Another thing you need to think about is filler hole and fuel line inlet outlet fitting and if you want any of this stuff welded in. Later
shane