I'm planning to swap a 3FE into my FJ40, and I'm trying to get all the legal issues out of the way before I do it. I need to keep the factory FJ62/FJ80 gas pump. It's considered part of the smog equipment and needs to stay. That basically means a custom tank. Has anyone here ever built one to fit the factory space? Or would it be easier to cut up a stock tank and fit the pump in it somehow? How does the pump mount inside the tank? Pictures are most helpful if anyone has any.