Acer Aspire V3-571G, 3rd gen i7 in Marsiling Drive, North Singapore for sale

Helping a friend to sell his Acer Aspire V3-571G laptop. Its powered by fast 3rd gen i7 processor, with a big 15.6" screen and a 8GB ram. Handles high demanding games very very well.
Outlook 8/10 (Scratches on the top lid cover and hinge. One very faint scratch mark on the screen, but not noticeable during usage)
Specs
Intel i7-3610M @ 2.30 Ghz
4GB RAM
Nvidia GT 640M (2GB Vram)
15.6" LED screen
1x USB 3.0 port
Dolby Home theater Audio
Full-sized island-style keyboard, with num pad
Stock Windows 7 Home Premium 64
Laptop and chargers, plus a Dicota laptop bag
Just found out the default 750GB harddisk is faulty.
$650 for a No harddisk
$600 for a 320Gb Harddisk with stock windows 7 and program
Price is NEGO
SMS @ 82498421, Deal at Woodland mrt station