www.conceptzperformance.com sells clips and has a customer service record that defines spotless. They're listed as $2750, which is just about the lowest price I've seen from a well know reputable vendor. The going rate is just about $3000, which is a heck of a chunk of change but thats what they're going for.
www.noyanusa.com has been a business that many on twinturbo.net have had luck with.