how to restore the trims of the back of a bucketseat Imperial 1971

[jet1969]

For my restoration project I am looking for two trims for the back of the bucketseats of an Imperial 1971. The chairs are getting new green leather and green vinyl. Does anyone have these trims? or knows where to get them or how to restore them? In the pictures the trims which I am looking for. (The picture of the black seats is an example from Frederic Closier Imperial 1971 in France)