Price Of A 2005 Td4?

Hi everyone, i'm new to the forum and sadly probably only here for a short while. Got our brand new TD4 in November and love it. Baby on the way now and we need to streamline our finances...so it's got 5k on the clock and is 5 months old, it's in black and we had a 12v powerpoint put in the back as a little extra and still has 2.5 years left of warranty. God i don't want to sell it!! anyway how much do we price it for? so difficult to find real comparibles, have looked in top marques mag ..what do you think?

thanks for any help