I sprayed my own grille. pretty good colour match!
Brought the spray cans (paint, laquer) from a paint mixer on ebay. much better than the stuff from halfords. But make sure you put 2 coats of Etch primer on the chrome before putting on the primer, as normal primer does not stick well on chrome.
wet and dry sandpaper- halfords
etch primer- can get from halfords (not there own stuff)
primer- halfords
paint, laquer- ebay paint shop