Can Mavericks behave like Lion on multiple screens?
For your second menubar problem, you can unset the last checkbox in Mission Control preferences panel.
To do this: System Preferences > Mission Control. Uncheck the fifth checkbox "Display have separate spaces"
Systems Preferences/Mission Control *Screens have distinct Spaces* (last item to uncheck) That should remove the status bar and act as usual. Not that I "translated" from my French configuration, so It may not be exactly the same words.