You realise this is the wrong Forum board yes? Also, read this: http://empireminecraft.com/threads/auctions-currently-disallowed.5027/ Auctions are no longer allowed.
I'm not trying to tell you what price to sell your items at, but, no one in their right mind will pay 9k for sharpness II.
I think the most you're going to get for this sword is around 1k, unless you hold an auction on your lot, then you might be able to get a little more for it.