I'd split 'em and spray the silver parts white while you're sorting out the lenses. The silver looks out of place now you've changed everything else.
Got to pluck up the courage to split them!
Although found a company in Grimsby that will refurb the lenses and polycarb laquer them again to 3 microns.
Post up the results when you get them done. One of my lenses could do with some TLC. How much does it cost?
Got him down to £60 per light won't be done for a while cash being spend on more important things!