Linn Akurate 242 mid dome

I recently picked up a pair of these and I think the mid dome got jostled during shipping. It buzzes at certain frequencies like the voice Cooke is rubbing.

so, does anyone know if this is repairable? I’ve contacted line about replacements, but am prepared for them to say not available. Can a new dome be put on? Can it be manually repositioned? Does anyone know of an equivent deiver that would work?

help appreciated.
Jeff