Chrome is cool, but it has to be done properly. I've seen chrome copies that were really not that good (they either looked like old tin or matte silver paint) and they didn't have any appeal to me whatsoever.
So unless you know that it can be done very well, I'd say have some kind of nice color put on there that's never been on any production JS. Like a nice mint green or something. That would catch my eye, for sure.
But if you're going the chrome route; I'm sure many people would find a chromeboy with a fixed bridge very interesting. But there is the new JS1600 which is so much similar. So, I'd say put a whammy on there.