Does the course you want to get in actually require 99 ATAR or selection rank? I got into a 99+ selection rank course with an ATAR of 92.60, because my uni is very generous with additional points for achieving band 5 and 6 as well as location points.
Not sure if your ATAR is high enough to get into the UTS corse that has a guaranteed entry into Master of Physiotherapy (the undergraduate course has Exercise Therapy in the name). I understand that you are not interested in any other uni, but FYI - ACU's Bachelor of Physiotherapy is very well...
I can't help with Macquarie, but just letting you know tha Bachelor of Speech Pathology at ACU (North Sydney) would be a faster and cheaper way to become a speech pathologist. They are even doing early entry for year 12 students (ACU Guarantee).
UNSW is the best in Sydney for psych.
I hope you are aware that you will have too complete additional 2 year master to be eligible for registration as a psychologist.
Some unis will give you extra points for EAS and some won't (most do though). Also how many points varies from uni to uni (I believe it can be up to 10 for some). UAC will send you a list of unis that will accept your disadvantages and EAS.
Also some universities in NSW (probably other states as well) offer early entry based on community volunteering involvement e.g. Macquarie Leaders and Achievers & ACU Community Achiever Program. However, written references will be required.
Absolutely worth it! I got 5 early entry offers (3 different unis) and although they weren't for my dream course, they did make me feel less anxious and pressured in those last few months of HSC.
My advice would be to contact UAC directly through FB messenger. They will answer your questions.
The hours per week for rehabilitation/treatment can also include home program as long as your health professional provides a letter stating that.