Right now its a buyers market. So if you sell TODAY, you're not going to find a buyer that easily and if you do find one, you'll be haggled down to $5k to sell it.
Guys like me with 848's are getting between 8,500 and 9k for our bikes... why would anybody buy an almost 10 year old 748R when they can get a 1 year old 848 for a few grand more?
Anyhow, its interesting times we live in. If you were to sell it now, you'd at least get some money, maybe in the future you won't get anything for it...
Good luck! Its a gorgeous bike! And KBB blows, don't go near it.