Welcome to the forum.

I'm from Australia too and I got my 20" wheel arches from the US via eBay.

They're genuine BMW item and cost a whole lot less than they do if you bought them locally (even factoring the shipping cost).

If you decide to go this route, I highly recommend buying the rivet tool the seller also sells. It will make fitting the new wheel arches, much, much, much easier. With this tool, you don't even have to remove any wheel.

It took me around an hour to complete the swap from 18" to 20" wheels arches with no prior experience doing this. I simply read one of the threads in this forum on how they did it (paying particular attention to where all the screws and clips are located).

If you can't find the seller, PM me and I'll see if I can still find it for you (it's been a while since I bought them).

PS. I also bought from the same seller genuine BMW Titanium grill and bumper mess. Again a lot less than they cost locally (ie. almost half price).

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H@mmer
"Don't take life so seriously, it's not permanent"