It looks like you have the standard all red & clear tail lenses and they are readily available as repros and from guys that have converted to the Euro lenses (with orange) or the Group 4 and all clear variants.
I have not seen that type of peeling, but the lenses can probably be carefully stripped and resprayed with transparent red if you wish to restore them. I'm not sure what solvent would take the paint without damaging the plastic, so proceed with caution if you go that route.
Mark
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