BuddyPress.org

I have a very interesting requirement. and I have been trying to crack this combination of modules available with no luck……….

requirement:
1. Admin of a group should be able to “add” any particular post on to a group. On group page I should then show. thumbnails of the post that this particular group is talking about.
2. A normal member of the group should be able to “recommend” a particular post to the group-admin which he may consider to add.
3. Similarly on the Post users can see how many groups are discussing this particular Post. and may also add the post on to their group.

Can anyone help???
Thanks