Hi,
First off, welcome to A.org

Secondly, you should really order from the UK Amigakit as you'll get a PAL A1200 (UK & Australia) or you might end up with an American NTSC model (unless of courese you want an American one).
If you contact Amigakit directly through their website, they should be able to give you a more precise quote via email for shipping.
http://amigakit.leamancomputing.com/catalog/contact_us.phpGood luck!