BuddyPress Installation & Social Media Login

Hello. Here is what I need done: ** - indicates it is very important and is a requirement for this job **1.) I will need you to install "BuddyPress" [login to view URL] into the hosting account I will buy 2.) I would like you to show me how to install "BuddyPress" plugins myself. I am assuming it is very similar to installing "WordPress" plugins. For example this chat plugin is one that I would like to have: [login to view URL] **3.) I will want the "BuddyPress" website's users to be able to log in using their existing social media accounts. Specifically if possible: facebook, twitter, linkedin, google account, aol, hotmail, yahoo and wordpress account. If some of these social media accounts are more difficult to add than others, please bring this to my attention. 4.) Is there a way on "BuddyPress" to manage the members that log in and sign up? In other words does it automatically create a members list. The reason is because I'd like to keep a count of the number of members that join the site. 5.) I will definitely want a forum like on the "BuddyPress" demo: [login to view URL] or alternatively like [login to view URL] Thank you very much.