well.... my golf is on its third panel now.....lol so i've gotten quite good at sourcing them.... search for any variations of the following:
slam panel
front panel
radiator panel
radiator carrier
i've got a little 'directory' of breakers that ive come across who sell genuine ones removed from cars for between 60-120 a piece some even sell them complete with the bumper bars/foam inserts just depends what theyve got and if your willing to travel a little bit
if you decide to get a 'copy' or 'oem' panel make sure you check it over and please please please ensure that it has the metal lining already in place and dont make the mistake i did! i think euro car parts do the 'good' one which has the metal lining in place, some places do the cheaper plastic only one...
i would recommend hunting around for a used genuine one however.....
if you want those phone numbers shoot me a PM and i'll update this thread with them :)