Fran,
As I mentioned, I tried dying all the pieces with carpet spray. Now, If I simplly scratch it with my nail, the black comes right off. I assume It all can come off using a brush. It probably would be best to send you one of the small pieces so you can try and see If it is worth your time.
The price is $390. I am trying to get a local shop to duplicate the pieces. So I would need a few days to have them meaure everything.