I have a pair of side openers with acrylic or perspex glazing, the chrome frames and hinges are in fair condition with very little rust or tarnishing, these came out of a rally prepared mini in the 70s.
The acrylic/perspex is very cloudy and scratched but may improve with a bit of elbow grease or could be replaced with new material.
I would be looking for £20 for the pair ( collected ), from just outside Lancaster.
Due to my lack of modern day technology i cannot provide pictures.