2000 X5: what is a fair price?

[cracker928]

It is always hard to tell a fair price for a used car because the references (edmunds,kbb,etc.) are based upon reported sale prices. Now, many people mis-report the prices to avoid higher taxes, so can these references be accurate?

Here is my problem: I have reluctantly agreed to sell an x5 for a friend of my wife. She did not want stangers showing up at her house, so it is now sitting in my garage (I miss my garage). It is a 2000 BMW X5 in excellent condition with only (from what I can tell) the following "blemishes":
1.There is one small ding on the hood. Nothing major, but it is there.
2.Some pixels don't light on the odometer. Searching the forum this seems like an easy fix, but it's not my car so I don't want to take it apart.
3.The back-seat drink holder does not stay shut.

NO damage history, 72K miles, silver on grey and very loaded including heated seats and navigation and 19" wheels, new tires and brakes. SoCal car since new, original owner.

She had wanted $24K out of it originally, but from what I can tell, that might be a little high. I think she is now willing to come down significantly in price, but I do not want to see her get ripped off. What is a reasonable asking price for this thing?

-Neil


Edit: ...Oh yeah, it has Xenons too.