The best way to simulate realistic hardware is to use real hardware. I replaced all of the molded in plastic hardware with real nuts and bolts. I also made the throttle grip so that it would rotate and installed a little return spring in it. I hinged both the clutch and brake levers. The brake lever has a return spring in it and the clutch lever is attached to a steel cable that runs down to the clutch lever on the engine. The grips were also detailed to match the reference photos. (The zip-tie is in the bottom RH corner.)