Hi Drakman,
Thanks for the thoughts. We've got the tools to bend it up, so joins I don't think are an issue. We'd use rubber grommets in all the holes through the body, so unless it would rattle against the walls of the fuel tank area I think we'll be okay.
Glad to hear the steel fuel line is well proven. If we can overcome the other points you've raised, it looks like we shouldn't face too many issues.
Thanks,
Sharks