Not sure what else to say except a truly wild transformation: http://www.bikeexif.com/yamaha-xz-550-restomod
Some of my favorite reader comments about stock XZs include: "one of the worlds ugliest POS motorcycles" and "a gutless wonder with virtually no redeeming qualities."
Here's his YouTube account for a few fairing-less clips during his build: https://www.youtube.com/user/poodtje/videos