When I got the car there were almost no original interior parts with the exception of the dash.
So I honestly can't say.
However there was one a pillar trim that was white originally and painted black when I got it.
As I have seen on a few other black and white cars, the door panels were white, front kick is white, and rear panels are white.
Not sure about the ceiling upholstery but I would bet it was white also.
I am only talking about the cars that I have seen pictures of. And usually that includes seeing the fender tag. As you all know I love tags.
I am sorry I do not know more information on the originality of this car. I wish I could have kept it.