that really depends on the refinishing job,,i wouldn't let anyone fool with it ,,i wish i was closer to ya from what i can see i'd proably just do the wire wheel cleanup i told ya about and you'd be surprised how it would come out i hop i can find a pic i posted awhile back of a rusty peice i showed a guy what a wire would do... hell it took all the rust of and underneith the rust was blueing,,

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,,i think you could proably clean it up yourself as long as ya don't scrub or wire too hard in 1 spot,,if it would come to leaveing it alone or refinishing it ,,theres no doubt i'd just leave it alone,,
bigcurt