it might be worth a drive to Daventry for a £70 front bumper currently on ebay that has all the grilles included, you could get your money back (including fuel costs probably!!) selling the upper grille, foglights, foglight grilles and the remainder of the bumper separately
I must stress ITS NOT ONE I'M SELLING!!
I just found it in a quick search on ebay as I'm looking for a front bumper myself