IMAC 27" Late 2013 512 GB SSD 780M 8GB RAM i7 in CABRAMATTA, New South Wales for sale

Selling my late 2013 27" imac that is less than 3 months old. Bought it online from apple's website. There is nothing wrong with the machine itself, only reason I'm selling is to buy a laptop for work (I need portability).
Specs:
3.5GHz Quad-core Intel Core i7, Turbo Boost up to 3.9GHz
8GB RAM
512GB SSD Flash Storage
NVIDIA GeForce GTX 780M 4GB GDDR5
OSX Mavericks
Comes with apple magic mouse and apple wireless keyboard.
Original box included.
Original invoice (receipt) included - still warranty left - 9 months or so + Australian consumer warranty
To configure this same machine on the apple website will cost $3499
Condition is excellent - like new. Hasn't ever left my desk since I unboxed it.
This imac pick up only as it is too bulky to post. Pick up at 2166 - Canley Heights. Cash on pick up only please. Thanks.
Can't negotiate on price, not interested in trades.