I e-mailed ASP (Automotive Specialties Performance) about producing a small batch of pulleys, their minimum quantity and unit price. They replied that they would need a minimum of 30 units and couldn't give me a price until they had a sample of the crank pulley. They responded to my request very quickly and answered my follow up questions just as fast. This might be a good candidate for a group buy. Relatively inexpensive and doesn't require tuning.