1999 LTZ Sun Roof

My sunroof has a clip that shattered where the cable attaches to extend and retract the glass.

I found a place that offers complete rebuilt "modules" for $460 with $100 core exchange. A new "module" from an on line delco parts dealer is around $960. They also offer replacement tracks with the clip for $150. Even the $150 soumd steep for grease, the two part and instructions. It is made of anodized aluminum instaed of plastic.

Has anyone used this company?

http://www.sunroofdoctor.com/9599montecarlo.htm

Does anyone know where I could get the replacement part. It's not available from the dealer. I have searched the net. The company above sounds like the way to go.