Seems like this topic has about a million threads on it, and I have read them all but still haven't quite figured out what to do... What's the best way to revitalize my m20C interior plastics? Looking to do the headliner, window plastic and side panels (not the seats for now) and what does it realistically cost if I don't do it myself? I was hoping to find something around 3-4 AMU that I could purchase and have a mechanic install quickly and easily during annual this winter in 1-2 weeks whi