There is an unfortunate fact of life that pertains to cars as well as bikes. Regardless of how much we spend on farkles, they, unfortunately, do not help with the resale value. Actually, some people feel that accessories "personalize" a vehicle, and that may not represent the buyer's personality.
That being said, asking 8K is not out of the question, but it may take a long wait for the right person to come around. I guess it depends on just how fast you want to get rid of your bike...