Advice for selling PC

After some advice on selling my PC (spec below).

1. What are my best options for selling? - sell whole PC or specific parts only?
2. Where are the best places to sell?
3. Any general guides on pricing? - it's 8 months old, yes I should've just bit the bullet and bought something better at the beginning!

Case
PCS ENIGMA 6003B BLACK CASE
Processor (CPU)
AMD A8-7600 Quad Core APU (3.1GHz) & Radeon™ R7 Series Graphics
Motherboard
ASUS® A88XM-PLUS: (M-ATX, DDR3, USB 3.0, 6Gb/s)
Memory (RAM)
8GB Corsair DDR3 1600MHz (1 x 8GB)
Graphics Card
Integrated AMD Radeon HD 8000 / R7 Series Graphics
1st Hard Disk
1TB SATA-III 3.5" HDD, 6GB/s, 7200RPM, 32MB CACHE
DVD/BLU-RAY Drive
NOT REQUIRED
Power Supply
CORSAIR 350W VS SERIES™ VS-350 POWER SUPPLY
Power Cable
1 x 1 Metre UK Power Cable (Kettle Lead)
Processor Cooling
STANDARD AMD CPU COOLER
Thermal Paste
STANDARD THERMAL PASTE FOR SUFFICIENT COOLING
Extra Case Fans
1x 120mm Black Case Fan (configured to extract from rear/roof)
Sound Card
ONBOARD 8 CHANNEL (7.1) HIGH DEF AUDIO (AS STANDARD)
Wireless/Wired Networking
WIRELESS 802.11N 300Mbps/2.4GHz PCI-E CARD
USB Options
4 x USB 2.0 PORTS @ BACK PANEL (MIN 2 FRONT PORTS) AS STANDARD
Operating System
NO OPERATING SYSTEM REQUIRED
Operating System Language
United Kingdom - English Language
Windows Recovery Media
NO DVD RECOVERY MEDIA REQUIRED
Office Software
NO OFFICE SOFTWARE
Anti-Virus
NO ANTI-VIRUS SOFTWARE
Browser
Google Chrome™
Warranty
3 Year Silver Warranty (1 Year Collect & Return, 1 Year Parts, 3 Year Labour)

It's a terrible spec. I don't say that to be rude, only to manage expectations about what kind of price you'll get for it compared to what one might hope.

Your best bet is to look on sites like ebay, and compare prices for similar systems and then the parts individually. I've not looked by my suspicion is that the system is so poor that parts will net more cash than the whole thing, as people might be more likely to buy these parts to fix up an old system rather than as a whole.

Make sure to wipe the hard drive before you sell it. Or you could keep it to add to your new system, as it's about the only component that will be compatible.