Exchange side mirrors does anyone have experience?

Hello, I think someone took the outside mirror with me on the driver’s side, so that this now has scratches on the non-painted plastic plug. I marked the place on an example picture. New the parts are very expensive, so I looked on ebay times for something used. Now there are some mirrors apparently without dead angle assistant. Does anyone have experience, whether I could buy this and convert it? Meiner has dead angle assistant. Also a question that I am looking for are all mirrors of the Ceed CD foldable and heatable? Can I convert the technology from mine to the “new” or is it not possible? Thank you in advance if someone can help. Greetings