Even with the hefty postage costs this is approximately half the cost of our local hi-fi stores. Going rate seems to be over $1,100 per pair at the local websites I've checked out (e.g. https://www.westcoasthifi.com.au/product/definitive-technolo… ).
There are plenty of positive reviews available online for these speakers.
The smaller SM45 model is also available for a good price but given the postage costs it probably makes sense to go large. Unfortunately the even larger SM65 does not post to Australia.
There is a German store called http://musicstore.de/ from which I will buy my monitors unless something changes, their shipping fees are very cheap, and since we are outside EU 20% of GST is excluded. Check them out.
I am not sure whether they have your subject monitors, but they may have something similar.