From wordpress site to custom cms

I need a freelancer to transform my website into a custom website THE CMS The CMS must have the possibility to manage the 3 roles: AUTHOR, EDITOR, ADMINISTRATOR All three roles require login via email address and password. The email address will be assigned by the administrator and will be in the format username@[login to view URL] the table containing the midnight access must be common for all the sites in the group that will use the CMS. The cms must provide a template that can be modified by the administrator through an HTML editor Insert a block, menu and submenu management to allow you to insert links to RSS, advertising or other. The menus must be able to contain items with dynamic links that can change according to some parameters such as the first 3 most popular articles of the week. The CMS must adapt the title, and the tags to the page naming and to the SEO oriented metatags (eg title, keywords, etc.). If you have any doubts, take a look at the [login to view URL] website Management of a newsletter with the content of the publications import and management of wordpress articles Management of statistics (visits, number of readings, etc.) THE AUTHOR Creation of new articles by title, article and tags The author must have access to his personal area where he can place the articles The article creation page must have a WYSIWYG editor with the possibility to edit the HTML code authorization to upload images that will be optimized and eventually cut out and / or enlarged to maintain the proportions based on the size they will take on the home page (if required) faculty to assign a category and a topic to the article and decide on which site of the group the article will be displayed inserting one or more tags related to the article select the highlighted images send the article for review modify your profile that will be displayed both in the article and in a dedicated page. the profile must have as fields, indicatively, name, surname, a brief description of themselves and links to any social pages (facebook, twitter, instagram, linkedin) PUBLISHER Creation of a dashboard with main panels where some items data will be highlighted (to be decided later) Reading statistics on the sites Management of article comments Possibility of inserting articles as the role of AUTHOR Assign a cover image different from the default one Management of authors and editorial staff. It can manage the category according to its importance (authors to highlight or not) Approval of the articles with relative decision to plan their publication. Create, Delete or Edit categories and topics. ADMINISTRATOR Complete user management and assignment of roles including password reset etc. Faculty of managing menus, static pages and being able to directly change the html of the theme if necessary Creating a database backup (if necessary) Create or edit contact forms Send the newsletter with the publications Open a modal popup on one, all or some pages of the blog Management of an event calendar