Cissy,

living in an area where 60% of all cars bought new never see a coat of wax, I estimate that 90% of those have 30% of the clearcoat remaining. And those are the same cars with milk jug headlights. And this goes for any make or model. It seems that if the car is neglected for the 1st year-no wax anywhere including headlamp lenses, all of it starts to turn to chalk.

Back to topic: I've repaired headlights in much worse condition than yours with wonderful results. If you can find a body shop or detailing firm that will sand and polish them for $100-$200, you are way ahead.

Best of luck!