Bangladeshis in Auckland

Hello everyone. Im a Bangladeshi. Moving to NZ to complete my graduation and also get a PR in there so that I can settle down there. I have good hopes about this place. Im getting enrolled in Ntech's Concordia Institute of Business. My plan is to study there for a year or so and then transfer to University of Auckland. I dont have any knowledge about Auckland and its living. Can anyone help me sort out these few things like

1. Can I get transferred to University of Auckland later on?
2. How is Ntech's Concordia Institute of Business as an institute? Is is renowned?
3. Can I get a part-time job with an average pay rate of $15?
4. Is it hard to get a PR in NZ?
5. What is the minimum living cost in a week in Auckland?

Im asking all these because the other day someone told me that its not a good idea to come and complete graduation in NZ unless I have a lot of money and I don't study in University of Auckland.

Please check your previous post as I have answered your questions there.