[Woahdude]

Been searching forever for a tank with no dents to match the new fairings I got a while ago. Super hard to find one for a 15 year old bike that's not dented at least slightly. Anyways I finally came across one but this one has a bit of rust on the outside of the filler neck. Anything more to it other than sanding past the rust and sealing it? What's your guys' opinion on making sure the overflow hole won't rust again either?