Ok, so far I've been into Motortraders, Sprints, Supercheap, Autobahn, Nissan, 2 paint and panel places and done a lot of searching on the net. The closest I can come up with is a Hyundai & Kia Headlight Assembly Grommet Whith is nothing like the original.
No one seems to make much for round holes, there is heaps of stuff atound for square holes and smaller round holes but very very little in the size that we need.
I went into another Nissan dealer today, we managed to find the side skirt fitting kit, and the end cap(I'm missing one too) but unfortunatly the trail ended there, the part was no longer listed or something.