I am looking for a complete clone of [url removed, login to view] functionality, but with admin ability to define the listing perameters and names. This way the software can be used for many things. Also, like loopnet, the admin needs to be able to define the information viewed public and be forced to sign up for either paid or free membership, determined by admin. Loopnet also has paid listings for both sellers and brokers. Client should be able to manager their listings, as well as see payment history. Payment modules should be availble for [url removed, login to view] or paypal.
A page framework is ok as long as it lends to easy templateing. A MVC framework would be optimal if possible.