Bought my 2008 3rd Tornado Red ED30 manual (stock) with 51k on the clock 5 months ago, FVWSH for £11,995 from a VW main dealer with a bit of haggling.
Mind you since then i needed to change 4 tyres, pads, cambelt, water pump, Diverter valve. Also changed PCV, Fuel Filter and coil packs and front discs. Not including modding spent £1500 extra to make sure everything is nice and tight.
Make sure cambelt/water pump has been done and has had a recent MAJOR service not just an oil change service otherwise your looking at £600+ within the next 6 months.
Prices were dropping when I bought mine, think the one your looking at is priced high but as said that depends on spec ie xenons, FVWSH etc, recent cambelt change etc.
Don't expect to see much more than 24 - 30 mpg round town and 36+ mpg on motorways and if you really use the load pedal, 17 mpg.
Stage 1 map and that alone you will be seeing around 280bhp, add a TBE and induction kit then around 300bhp and so on.