Seems like a pretty good deal for a pretty recent system and have seen people raving about the performance of these things. Don't have a use for one myself, but thought I'd share anyway.
Normally $999 from Apple, so $887 is a decent discount. eBay Plus is required for the code to work I believe.
Buy it through AOC:
https://www.ozbargain.com.au/node/874044
$815.10
(and use Apple Gift Cards, if you want it cheaper)