Where are you getting the 136 figure from?
Also OP was asking for gen ed recommendations, and nobody here posted any....
From the Handbook. In
2012, the year UNSW began the course, there were 28 students; in
2013, Summer, there were 51 students; and now, in 2013 S1, there are currently 57 students taking the course.
Considering Gen Eds are usually taken by 2nd and 3rd year students, many will probably have moved on from BoS. Even so, Gen Eds are really only for students doing a single degree, and since there are a lot of (active) students taking a double degree (going by the relevant threads), you're looking at a few students who are reasonably active on BoS who may be able to contribute to this thread.
So it's not surprising that this thread has no useful replies - you should take a look at the Subject Reviews thread instead.