Dare I say; have the plastic re-laser cut? I assume it's just the clear piece with no artwork on it?
I'm thinking about offering "laser cutting" as a service... but haven't really taken it any further beyond just the idea stage.
I have an LE myself; so I could maybe be convinced to use my un-abused plastic as a reference. I'd probably need to source some PETG in the correct thickness.
Let me know if this interests you.