Authority Niche sites

The process will be you will research PR aged domains and then send them to me with 30-50 longtail and main keywords with a cpc I will determine. I will purchase the domain and do the install Site Will be built on wordpress. Each site will have unique Copyscape passed 20,000 words of articles/blogpost create 25 slide based videos and add to youtube with a linkback to the site. Each Site will have 25 non clickable youtube videos with 100 word unique description. Every article on site will have a image with alt tag. Site will have premium theme installed. Site will also have About,contact,privacy,resources,Archives Page setup. create Facebook fanpage and twitter account and pinterest for the site. All essential plugins will be installed. You must be experienced with these type of content heavy sites. I need price per site. I will need multiple sites If you can add anything to this package such as SEO, Social Media etc please include