i got a '92 (s13) 240sx fastback about a month ago... anyways i wanna rust proof it so i can keep it clean... theres a little rust on the bottom, im pretty sure its just surface, not deep... so i wanna know how i would go about doing this? would i need to remove the rust first, then do a rust proofing? and how would i remove the rust? anyone know any good shops in the toronto area that would remove the rust?