On the link you provided I contacted Steven Hatton via Email. He informed me that as long as I had a machine which is compatible with Region 2 it would be fine to place an order. In my case (USA) using the Australian/New Zealand shipping price.
If you have a machine which is Region 2 compatible, why not ask Mr. Hatton if you can order from your location? He replied to me very quickly!
I keep one PC (Windows) with the media player set on Region 2 so I am set and my pre-order placed.