just a question for y'all... not and expert when it comes to fuels and the reaction with metals....

A little history... when I had the tank made for my sailboat stainless was slightly cheeper than aluminum I think mainly due to the welding process. The tank was almost equal in weight as a comparable aluminum tank because it could be made from thinner wall material...

Is there any reason why you couldn't use stainless for gasoline?? I know you dont have as much an issue with galvanic corrosion with stainless vs aluminum...

FG... if you do go with a custom tank make sure you have it pressure tested (most if not all of the tank fab places include this in the cost)... always to be better safe than sorry...

(edited for piss poor spelling)