I believe molasses might be a better choice for a non-destructive way to remove rust than vinegar. Vinegar is acetic acid, whether it's white or made from apple cider. It's not as corrosive as Sulfuric (battery acid) or Hydrochloric (brick-cleaning "muratic") but it's still pretty potent. If you've got a farm supply nearby, see if they will sell you a small quantity of molasses cattle feed supplement- - - - -just don't try to put it on your breakfast pancakes!
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!