I have just had 2 R80G/S analogue speedo's refurbished by a Perth company in Canning Vale. They did a complete overhaul replaced worn parts (yes they have a source for instrument parts), calibrated, cleaned and painted the speedo's for me. The cost was $120 per Speedo. They also work on the K instruments and VDO gauges etc. The business is managed by Jeff who I thought provided a friendly and efficient service, see the links page under members links for their contact information