1. you can find it according to your past qualifications. to get admission into university you need minimum 7 bands. not each less than 6. some universities may demands more.
2.

PR doest not depend on which course you do.
3. It will not affect if your SOP (Statement of purpose )for study visa in strong enough.
4. It is difficult to pay
whole fees of second semester from part time jobs.
5. for loan procedure it will be needed.
6. you should show that you father is sponsoring you. Loan requirement is Approximately 10 to 12 Lacs INR for 2 years course