Where can one obtain the iSIght kit for the MacBook Unibody 13.3"

I have a MacBook Unibody 13.3" (model A1278) that has a broken iSight camera. I'd prefer not to replace the entire screen enclosure because it is not defective. Where can one find just the iSight kit?

By the way there is no reason to replace the entire display to fix the camera. As you may know removing the glass is difficult, but it's not impossible. An entirely new display kit is usually about $300-500. I'd rather have just the camera piece.

I have since found a vendor who is willing to sell me a broken display kit that has an intact iSight camera.. I will let you know how it goes.