They want alot for spraying your original bumper inserts, Emma got NEW ONES sprayed for that price so i suggest you actually go back to them and tell them to do your original ones for 150 quid like Dereks or give you new inserts for the price they want from you.
But i dont think it'll look naff, it should look cool, for the reasons stated in ur PM.......
oh and one more thing check the discussion section
Erm