Barrington Tops - maps

[hairyfoots]

Hi
I'm looking at doing a walk in the Barrington Tops over the long weekend. Not quite sure exactly what yet but it sounds like the walk up to Carey's Peak would be a good start. Which topographic map covers this walk? Four are mentioned on the parks website and I'm sure I don't need four. Are there any private maps or guidebooks that would be good as well, or any booklets from a national parks centre?