Excellent price for an Engel. These are normally $799. This model is the entry level Engel however has the same compressor as their main range.
Take another 15% off with this deal - https://www.ozbargain.com.au/node/630505. Unfortunately these gift cards can't be redeemed online so make sure your local bcf store has stock. WW deal doesn't start until tomorrow, the engel sale ends tonight.
Take another $20 off with this - https://www.ozbargain.com.au/node/629848
doesn't look like too much store stock (in Sydney anyway)