Show us your fuel cell installation...

Because my car us driven a lot on the street, I wanted to carry a spare tire, so I mounted my 8-gallon fuel cell in such a way that I can still use the spare tire wheel well for a wheel and tire. Its not the prettiest thing in the world, but it works...
I use the original tank for pump gas and the fuel cell for hi-octane race gas.
Sorry for the duplicate pic..