- you're a star! thanks mate.Having a second degree on top of Bachelors will give you almost 50 points (don't just assume the education, it also gives you 25 extra points from skill transferability section) and there's a big difference betwwen CLB 7 and 9 from IELTS.
As you said, those 2 factors will carry you towards 430 - 440 point range, which will enable getting OINP or other PNP nomination if you can. Even a 1 year post-bachelors degree will do.
Hope you get what you desire mate!