Can I consider studying in New Zealand with a double degree from an Austrian university?

Yes, but really tired. I have five papers in one semester, and I am really tired. The efficiency of the British education system is really not bragging. One semester 12 weeks, super. So be prepared to study hard. I have friends who study English. If you get good grades in English and science, it should be ok. It's not difficult to connect, but it doesn't matter if you don't study much every semester for half a year. It won't be difficult. It depends on how you arrange it. For immigrants, an ENG is enough. What else do you want to know? Ask me.