Networks of networks and access control

Hi Guys,

I’m looking for recommendations for a potential client.

I have network+ that was recommended. It will solve the top half of my project needs as far as state and city breakdown.

My question is which plugin is best at the local level?

I can go state.city.category.domain.com and then have the sub sites below the category. My concern is that each level of sub-domain requires it’s own dns entry or parked domain.

What is the best way to handle the category and sub groups?

Would the membership plugin do that? Can I activate the membership plugin on the main site and grant access to the sub sites from there?

What is the best way to create groups on the local level as in the url above?

The groups need

a calendar.

Email notifications

Discussion/updates.

I’m tired and not sure I’m making sence.

Looking for the best way to manage private groups.