I am going to sell my bike in a couple of months. It is in good condition, except that there is rust on the chain. I want to get a good price for the bike and I don't want potential buyers to be scared off by the rust. I cant afford to buy a new chain or rust remover kit because that would cost more than what I would get for the bike. I was thinking of painting over it with a cheap acrylic spray to hide the rust, but am concerned that the paint may not hold because of the lube, or may clog the links. Any suggestions?