Work / How much salary should I ask for IT Business Analysts in Wroclaw ? [17]

Hello ,

I'm currently in contact with a company for IT Business Analyst position in Wroclaw.I'm living in Turkey , married and have a 9 months old child.

If it all goes well , we'll be moving in Wroclaw.

I'm wondering how much salary I should be asking or be expecting for this job?
I looked in this forum and some others about this , but couldn't managed to find satisfying answer :)

Some says it salary should be between 10K - 15K (net) and expenses will be around 7K ( flat (2room?), food, bills (electricity,water etc.))
Well lets say , I had an offer 10K (net) and expenses are 7K.

Will 3K be enough for ???
Travel with my family in summers, go out once in a week , child's needs , saving money etc. (You name it). Or the expenses are not realistic?

By the way , I'm an Industrial Engineer. Have 6+ years of IT Business Analyst experience.

Thanks in advance for your answers!