Yep, thats a Kamei grille alright.
awesomegti can supply one but I can't find a price for it atm... As for fitting, that should be dead easy - unclip standard grille, replace with new one? Or at least thats how the GTi grille comes off

not too sure about the standard 'slatted' grille.
If you try a google/yahoo search you'll probably find at least half-a-dozen suppliers for it - those eyebrows are Kamei too, and I believe that the little bit of plastic/metal for the centre of the bonnet comes with the grille and fills the gap left by the VW front badge.
HTH