take pictures before you take it apart so you know how to put it back together. It sounds dumb but there's gonna be some little thing that you're like "Now what the hell is this for?" at the end. Plus we'd love to see it.

A dremel tool and some kind of metal polish is the way to go with the brakes and levers and such, everyone seems to have a favorite polish. I like SimiChrome. For the Frame you should give polishing it up a shot before you decide it needs new paint, unless you have your heart set on repainting it.