Build drupal 8 autonews blog website

I installed Drupal 8 RC2, Need news site 1. It will import RSS feeds to nodes (posts) A. Can assign feed to specific category B. Under feed be word "Source" and link to original article 2. Can make custom change in each feed like: A. Replace HTML code B. Filter specific class and id if need C. All photos be removed 3. Will make sure same article will not be uploaded more than once (done by saving urls of the articles we published, so each new article be compared with them) Need theme responsive and similar to my WordPress site (will send you link). Also this project include update my site till there be final stable Drupal 8 version Make sure site use minimum resource as it will have millions of posts/nodes