Well, I'll be the party pooper here, but you stated you need it gone fast, so you need to hear this.
You're asking too much. WAY too much.
First year 919, over 20k miles, even in PRISTINE condition is worth $2500-$3k. Tops.
Especially at this time of year (well, maybe you don't have fluctuating prices like where I live, but I gave up trying to sell mine until spring).
For what it's worth, I have my 2007 with 4k miles on the market for $4800 and I think I'm aiming a bit high, only because I don't need the cash asap. If someone offered me $4.5k for it right now, I'd take it.
Sorry to say it, but it's what you need to hear.
As an example, this guy is 40 minutes from me, and has had his 919 on the chopping block for almost two years. He hasn't budged on the price.
2002 Honda 919
2009 Aprilia Tuono - Ginger
2001 XR650R BRP (Big Red Pig)
2006 Honda 599 - Ex wrecked it :-D
2007 Honda CB900F (sold)
2006 Honda VTX 1300C (sold)