I've noticed that more and more parts for our bikes are NLA no longer available .
I don't know how it is in Europe, but in the US, vehicle manufacturers are required to stock parts for 20 years for vehicles .
Twin shock R65's were made up to the '84 model year, so I'm surprised there are any parts left !!!
I had this problem with my last car, a '91 Honda CRX Si, needed a fair amount of parts in late '14, I had to get parts from Honda dealers all over the US to put the car back into good condition to sell, Honda North America did not have any parts for this car in any of their warehouses in the US, or Japan .
It wasn't intended to be this way, but my '84 LS has slowly turned into a parts bike .