Build a Wordpress Bookstore Website (Theme will be provided)

Scope - Design: Theme will be provided but need add extra functions and pages that the theme may not have - Landing Page, Article, Author List, Category will be follow the theme design but just install to Wordpress site. - Members Registration, need to build a very simple page for user to register by input their email two times and select their country. Around 5 fields for user to input and once user submit the form. An confirmation email will be sent for user to verify their email address. This approach similar with existing normal website email registration. - Members Registration, user also can login via facebook / google+ / twitter / Weibo (China Social media). In this case, they don't need to fill in the registration form. - Members Upload their Book. We will provide a page for members to upload their book. The form content will be same as Admin site input page. Assuming the members upload book page are new design but not direct use Wordpress admin site. - Members can put their comment to all book - Book detail page add a widget that will auto query similar books by searching the book name or author name - Book Ranking, members can give a ranking to all book. Assuming each member only can rank each book 1 time to avoid over ranked. - Need support 3 languages. We will provide the other two languages. Assuming data is unique and only Website Label and Title need support 3 languages Others - Require full source code - Mobile Responsive, the themes we provide is mobile responsive and all new created page should be mobile responsive too - If using third-party widget is acceptable but please mention the cost separately and need to tell us before award the project