So, after a little more research into university choices, I just learned that Monash does not even teach general relativity or quantum field theory until honors year, important topics I'd need to study more advanced physics. On the contrary, ANU teaches both of these as third year subjects, as well as offering string theory research projects.
I didn't really want to move interstate but the reasons not to go to Monash seem to be piling up. How big of a deal is this? I was considering perhaps self-teaching myself the stuff not covered by the undergrad program, but I'm not sure how plausible that is. Am I left with no option but to move out and attend ANU if I want to continue this line of study?