i got mine from a non nissan dealer,that mainly sells top end cars,lambos etc.
mine had 63k on it when i bought it,i thought 9.5k was a good price to,perhaps im just good at haggling.lol
I just had a look on the autotrader chap,dont know where you are from,but down south the cars are listed up as 8k 9k 10k,i found 21 in a 40 mile radius of where i live with that price.
11k,still sounds to much tbh,bet the dealer got it for around 9k,if it has been on the forecourt a while he will want rid of it,just offer a stupidly low price and see what happens.