Modify - BuddyPress Corporate Theme

I am using the BuddyPress Corporate theme. Few things I want to modify:
1. How can I hide the Header Site title & Tagline on my web page without losing the real title & tagline that appear on the top of the browser?
2. How can I remove the navigation bar from the web page?
3. How can I remove the search bar which below the navigation bar?
4. How can I get a admin bar similar to the wpmudev admin bar you currently using on your site, without any wp-adim area access.