I recently inherited a late 70's Motobecane Grand Touring from my dad who no longer rides enough to need a dedicated road bike, much less the four he has. I'm loving the bike, but there are two, at least that I've noticed, small patches on the frame where the paint has chipped and it's started to rust. How serious a problem is this, and what options do I have for dealing with it? I assume I could repaint it, but I'd hate to alter the look of it. Also, I hate to come across as a cheapskate, but I'm not exactly rolling in disposable income here, how much would it run me to repaint the frame, and are is there any way I could solve the problem on the cheap, if only as a temporary measure?