My first deal post so let me know if I've done anything wrong.
I think this may be a pricing error as the body and 28-70 kit lens is the same price.
The a7iii body went as low as $2000 from memory and the 24-105 went as low as 1500. So if my math is right this particular kit is the cheapest by approx $730.
The cash portion of the purchase also earns you 5541 PTS.
I'm not sure if the Qantasstaff code works (from the Sony WH-1000XM3 post), but if it does it could savd you another 10%.
I claimed $5k last time I left the country and declared it when I returned 2 weeks later. The customs guy filled in the paperwork and specified 60% depreciation for my honesty, so I only had to pay 40% of the full GST amount. Of course many people get through without declaring, but he said the ones they do catch go through a lengthy delay and they whack an import fee and a fine on top sometimes. I asked how they know who to check, and he said that passports are flagged in the system when claiming on the way out, but he didn't say what the limit was that they start flagging passports lol.