I like to see that there are others out there who are looking forward (or back), and trying to find period looking motors to use on their bikes. An older looking bike with vintage styling, can be completely tarnished, in my opinion, by a straight out of the box, bolt on chinese tinker toy. Ingenuity and originality goes a long way in a crowd where everything looks the same. A dressed up up, or "antiqued" china motor isn't going to convince many, and at the end of the day, will you be satisfied with the same drivetrain as everyone else on the block? Keep searching, find something unique to set yourself apart. I'm building my second bike right now, maybe motorcycle really, and found the perfect powerplant for it. A bit pricey, yes. But the end result is worth the hassle! Best of luck!