[Zope] When should I use CMF?

I'm curious about whether people would recommend using CMF at this point in time for the following purpose. I have been asked to volunteer some time to setup a non-profits web site. I've been using Zope/Zwiki for a while so I was familiar with Zope, at least enough to get a wiki running and do simple maintenance on it. I figured I might try to use Zope for this purpose. The non-profit folks want a calendar of events and general information (phone numbers/contacts). They will have a handful of people (5 or 6) submitting content. It seems like overkill to use CMF for their purpose. The majority of folks that visit the site wouldn't log in ever and all these visitors would see the exact same site. Opinions?