I'm looking to set up only for paid members. When they pay I want to create a subdomain (ie. membername.wordpressinstall.com) where they will log in.
Each subdomain will only have two members, the Admin and the User, additionally if they visit the main site and log in, it will redirect them to their subdomain.
You won't be able to access any content on the subdomains without paid login credentials.
I was thinking of trying to do this with a multisite install, and possibly a paid membership plugin, but wasn't sure if any combination of those things would give me all the functions I'm looking for.
Could anyone make some recommendations for achieving this?