I have always recommended Brit Audio. Michael does excellent work. He's here in the states too.
http://www.britaudio.com/tonearm-rewire-service.html
Not sure if Rick, (Audio Alternative) re-wires arms or not? He is one of the best for Linn table repairs, updates and setup.
http://www.britaudio.com/tonearm-rewire-service.html
Not sure if Rick, (Audio Alternative) re-wires arms or not? He is one of the best for Linn table repairs, updates and setup.