Recently sold my black one for 3k with 23,000 on it. But it went with pillion, back rest, lots of chrome, upgraded pipes.
3k to me would be average, I would set a reserve at 2800 and put it up. Goodwood was 2004 and 2005 there are not that many out there. The color may help you with interest.
Winter is bad for ebay, you lose the snowed in people who don't have much interest until the thaw.
Here is 5700 miles at a dealer for 3900 meaning he sells it at low 3000s probably.
web page 
