Idealy, for me as a layperson who is only going to see these in a museum, I'd love to see a series of pieces...

First, the original, untouched (preserved but not restored?) sculpture.

Second, the reproductions highlighted in the article. With appropriate notations about "these are the base layers, not complete, etc"

And third, a best-guess at what the original could have looked like, based on the first two. Yes, this might be wrong and need to change over time.