I don't get it, are you just stripping it for parts? A camera that doesn't work reliably recording sound and video isn't much of a camera. If you're asking about XL1s used in general, $800-1000 would be a fair price for a fully working one.
Even if it can't record I could still use another camera or something to record on, right?
Mobility isn't much of an issue for the project I'm working on so as long as I can line out a good picture to another mini-dv recording device I'll be happy.