sidewide header image, buttons, no sidebar,…

Hi,

hopefully somebody will help me with customizing the twenty fifteen theme. Tried 6 hours but I just don’t get it. 🙁

http://fs2.directupload.net/images/150124/ak846wkw.png

1. sidewide header image
2. buttons on header image
3. navigation beneath header.
4. remove sidebar complete
5. textwidget on the right for images and links

Thank you!