Has anyone done this? There are two ProVari's up for sale in the classifieds that have either lots of scratches or lots of wear and tear on the finish. I'm thinking they probably work just fine so it's just the finish that's preventing them from selling. Can these be refinished? Would sanding do or would it have to be more like a sandblasting procedure? Those ProVari's in the classies only need a make-over, there's got to be way. Right?