I tried respraying mine using a chrome paint, but it came out matt rather than shiny.
It can be done, but it would be a lot more stuffing around than buying new headlights. Better yet, go to a good wrecker and pick out headlights which look reasonably new.
Jack Travis, E-Series Acting President
1989 Ford Fairmont Ghia turbo/GL replica (underway)
1994 Eunos 800M
1990 Ford Laser S