I also do the HSC syllabus, of course, including the new one. The newer parts of the new HSC have been in the IB Maths (SL & HL) courses for more than 2 decades. The IB HL in fact cover Vectors to a greater depth than the new HSC Maths Ext 2.
I do 1-on-1 and small groups. I can now do this at my place, 10 minutes walk from the Epping Station. Have been tutoring for over 15 years now.