[QUOTE="Can anyone steer me to a supplier?[/QUOTE]
IF you find one, please post back to this thread. I looked awhile back for the same thing, but never found one.
Otherwise:
I think you have had a very serious crash. Hard impacts to these cameras often cause the camera to loose calibration. If so, it will not work correctly, even if you restore it to mechanical perfection. If this were my camera, I would glue it together (as best I could) long enough to see if the camera is going to initialize, stabilize, and that manual tilt will work. This would also be a chance to see if the camera itself, and the WIFI, are working correctly.