I would have to agree with Zen. I wouldn't touch it. A Champagne edition bus, with all the correct color keyed components, original paint, striping, and all the little stuff, like the kick panels under the rear seats that ALWAYS are missing.... that's a very nice bus just as it sits. Unless the paint work is flawless, you might actually bring the value down from what it's worth now. I'd leave it alone, and drive it as is for sure.