I've had good luck ordering camera parts from the guys at The Foto Geeks. They have items down to the smallest panel or clip, or they will fix cameras if you send them, if that's your preference.

You can probably find a schematic for the camera if you poke around online and order the part. It really isn't that difficult, everything like this seems to be replaceable components, and if it doesn't work, well, you're still out a camera. If it does, you're set.

SRS