Having sat the entire course (full-time) as well as now teaching (for BCFT) I would have to respectfully and cautiously (with caveats) disagree with Oxford Blue on one point.
First I agree entirely that classroom study is best for most people. The points Oxford Blue makes about instructor time and help from students applies to all full-time groundschools. This is to many students extremely helpful, even vital to their success. We encourage any students who wish to study distance learning with us that if they are not doing well they should transfer to a full-time course.
However if you are as capable as you claim, Canada, you may be able to complete the course in less than 30 weeks.
For a start many residential courses come in a little shorter, due to less time off in between the two setions. Studying on your own you could restart immediately. Secondly you have some specialist background that means some of the work will be relatively easy that may have been difficult to others. Instead of sitting through the classroom teaching of everyone you can work quickly through this. Some material will take longer to understand without an instructor, but I think in the case of a student with a good, numerate academic background in addition to a background in aviation the overall effect will be to shorten the course, as long as you use a good set of notes (the two you are contemplating, alongside ours and at least one other set available I would say are).
The reason I judge this is that I am also from a numerate academic background in addition to a background in aviation. I feel that although I am glad I studied on an attendance course I would have been capable of finishing more quickly by self study. The whole thing falls down in that I am not very good at self-study, but if you are (the number of degrees suggests you are) then you may well be able to finish in around 5 months, assuming you pass everything first time.
The biggest caveat I would give is not to rely on this. You may be able to rush through, but don't commit to it and don't force yourself into exams you are not ready for just to keep to your own arbitary timetable!
Best of luck