Add features to existing wordpress template

We are building a digital marketplace to sell pre-recorded videos and live-streaming workshop using Opentok API ( [login to view URL]) or any kind of good WEBRTC affordable platform. We bought a wordpress marketplace template and already have it installed, including the required plug-ins [login to view URL] And also marketplace bundle with extension wordpress plugin: [login to view URL] Below are the key requirements for our project: 1/ Visual design workflow for each page ( such as home page, user dashboard, author dashboard, user /author registration page, payment page, and all required pages, etc...) Please refer to wordpress themeforest template which may show you the overall concept design for each page. 2/ Author- Create live events ( Opentok API key) *Simple integration of Opentok API key, which is only a few lines of codes *Users can make payment to join the events. Then, on the pre-determined dates, users can come to the website, click on "Join the event" and start communicating with the Author, live *Live sessions will have specific dates and times *Max number of attendees 3/ Author-Upload and sell videos * The current theme does not allow uploading of videos to be STREAMED right on our website (it only supports uploads/downloads). So this will need to be coded *Using Vimeo for hosting videos 4/ Author- subscription packages * Allow author to create subscription plans for their own store * Price per month/quarter/year *Description *Subscribe capability in author's front store *After subscription , users can get access to all the streaming videos & Extra digital materials of that particular author's store *Users can participate in live streaming sessions after subscribing and paying 5/ Product - Add to Cart and payment process * Follow registering and paying process and logistics as instructed *Integrate with Stripe connect/Stripe checkout 6/ Buyer's my purchases page * To edit the UI/UX Attached are the detailed requirements with visualization