Modify WordPress Plugin: Protect Content, Integrate with Payment Processors

I have a basic WordPress plugin that protects content by hiding it from users who are not logged in. It also has drip content feature and widgets that show upcoming content. **IMPORTANT:** An estimate for time to completion is required with your bid. **Here's what I want added to the plugin (see attached PDF for details):** Add new Menu with 3 sub-menus: Instant Member * Settings * Memberships * Instant Posts Settings page: * Option to hide all dates * Option to lock all content or specific content * Redirect user to a specific page after they log in at [login to view URL] * Select payment platform and enter key * Warrior Plus, JV Zoo, DigiResults, ClickBank Memberships * Add/Edit membership levels * Product Name, Product ID, Custom HTML if not logged in * View/delete membership levels Instant Posts * Create up to 10 posts or pages all at once * Post Name, Membership Level, Delay Integration with Warrior Plus, JV Zoo, DigiResults and ClickBank * Add users and product access when they purchase * Remove acceess when they refund or cancel Ability to manually add access to a product for a user or multiple users. Ability to display specific content to users who purchased products Function to check for updates and auto-update plugin **See attached PDF and plugin for details**.