Plugin for WordPress (BuddyPress)

We need to Write a checklist plugin (TO-DO List) for BuddyPress profiles. The analogue of the desired functionality: [login to view URL] (registration needed). Technical Specification: - You must add the user BuddyPress profile page for doing to-do list (/members-/user/checklist/). - The plugin must be in the form of BP_Component for BuddyPress. - Store list in the BuddyPress profile field. - Ajax requests using ajaxurl & hooks of WordPress (checking with wp_nonce). - You must write the functions: list query (get), create list item (post), change list item (put) (including changing the status of the item), remove list item (delete) - Approximate structure of json: [{ "id":"1", "name":"First item", "description":"Item Description", "scheduled_datetime":"2016-06-08", "completed_datetime":null },{...}] - Requirements for backend: calling functions of the plugin via WordPress hooks, no global variables or functions communicating with the frontend through wp_ajax_(action). - Requirements frontend: jquery v1.11 or angular v1.2 (or higher) we do not need css and design, we need only the working functionality on html. Requirements to the candidate: - good knowledge of WP and BP - experience in plugin writing for WP In your response please include: 1. The estimated cost of the work 2. Deadlines