Restricting access to member profile

The idea is that i will be able to generate passwords and populate a database. Then registered users on my site(a wordpress-buddypress membership site) can see a list of other members but for them to see other members profile phone number they will have to insert one of these passwords. It will also be helpful if there is a way i can set the number of members they can see when they use the password. Please note that the password entered will expire after each use and phone number is required field during registration.(1)In summary non registered users can see the list of members, (2)registered members can see the individual member profile except their phone number and (3)paid members via the use of password can see everything in a member profile for a configurable number of members. if the solution can come as a plug in.