Will any of the traditional fixes work such as sanding with fine sandpaper or applying a coating?
Its really not at all that difficult. I just did mine like a month ago usning this 3M kit.
And it took my headlights from this...
I then sealed them with some basic Carnuba Wax and there you have it. Good as new for only $20 plus an hour or so of my time.
Audentes Fortuna Juvat-Fortune Favors the Bold