Freddie, I looked them up, and they are 12,000 miles from here! Here in New Zealand, that is.
So, no. I have consulted the recommended local specialists, who express reluctance to get involved, and the cluster continues to deteriorate and become darker after ministrations.
I've also checked on a resource called Pick-a-Part, breakers of this parish, but they don't give guarantees either. Since the car is only worth scrap value due to age.....

So, scrap the old girl. Thanks for trying. Chris.