Just wondering, what would you consider to be a fair and realistic price to advertise my Stilo at?

2006 Active Sport 1.4
Blade alloys
43,000 miles
Full Service History (all dealer stamps)
Very very good condition in and out
Blue
Wind deflectors
2 blue keys and shed loads of documents
11 month MOT
3 months tax

Thoughts gratefully received :)

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Just incase you're wondering, I'm pondering getting an Alfa 147 Lusso 1.9 Multi-Jet :)