A few places will want your HSC results like Skywest and Qlink but unless you just left or are applying for a Cadetship no one really cares about the HSC marks. They probably will want you to have the HSC but if you didn't get a TER/ENTER of a zillion they won't care too much. Getting a good mark in the highest level of maths you can do and physics is good. Not just for your CV but I found that having a good grasp of maths does make a lot of aviation type study easier.
Remember the 200 hours CPL course is supposed to be a full time study course. If your only doing a few hours a month you should really be on the 250 hour course.