at their existing ground installations around Australia
Odd, given almost all of the Airservices ground installations are either out in the middle of nowhere or on mountain/hill tops so cameras would not be a lot of use, unless it is meant navaid sites at or in the vicinity of ADs, which would also be problematic for a variety of reasons. $160k wouldn't go far.
Such facilities are better put in by AD OPRs, aeroclubs etc. and leave government authorities out of it.