The Burton Feather come in a mid-wide 148 and 152. However, the Feather is a very soft beginner's board that she'd likely grow out of too quickly, especially considering that she already has some experience. I'm sure there are some men's boards out there that would work just fine.
As for bindings:
Ride Vxn or Dva
Union Milan or Trilogy
Burton Lexas or Escapades (stay away from the Stilettos, for the love of all that is holy)