I have a kitfox 4 speedster that's getting close to first flight. I left fuel in the tanks overnight and found fuel leaking from the fittings in the plastic header tank. After reading several threads on this forum, I decided to replace the tank with an aluminum one to keep leaks from recurring.

I have an older kitfox with the header tank mounted near the top of the fuselage behind the baggage compartment. I have a low fuel sensor mounted above the tank and a 3/8" aluminum fuel line running from the tank to the fuel shutoff valve, with a tee fitting and quick drain mounted behind the seat at the lowest spot. Is it ok to fabricate a new tank and keep it in the same position (and avoid rerouting fuel lines and drains), or should I replace it with the standard low mounted tank behind the seat?

Thanks for the help,
Jack