I have a rear window and fiberglass plug with the internal plastic molding for a 70 S/E Challenger, as shown in pictures.
The window and plug are in good shape. The inside molding is a bit wavy has one crack in it, it seems very rough textured on the outside. It almost looks like adhesive residue. I don't know what these were supposed to be originally, whether they were smooth or textured. I also have the rear window exterior molding, which is not shown in the pictures.
Robert
The texture is no big deal as you contact cement headliner material to it. The glass and trim is a bit hard to find so the whole setup is worth a few dollars.
Originally the inner trim had suede material with a foam backing glued to it.... Warped is typical, I've seen the outer trim alone sell for $200 but I've never seen a complete assembly sell for more than $300... So your best bet IMO is to sell it in pieces... Inner trim is harder to find than the window, yours is tinted which is a plus....