Interactive Live Quiz Website

We are looking to host a paid subscription quiz each week.

Users to register on website which will work on both desktop and Mobile applications, similar look to software/programmes such as crowdpurr. Youtube (Monster quiz)

The quiz is to be hosted live so the host will talk through the questions whilst being able to display either a question/graphic or short video burst or animation.

In addition to this other items to be displayed on the screen could include
Timer
Live poll and results.
Sounds/music
Prize money total for the game

User experience is to be simple with very clean bright coloured graphics. The user experience is to be a Hybrid between and App/Live stream/Quiz.

This website is to host a weekly live Quiz, so integration of a payment gateway (Stripe) is essential.
Backend will require 2 step authentication for login.
Winning team will receive a percentage of total prize money from the event so contact details will need to be stored for that purpose.
Usual website pages such as Cookies, Terms/conditions, contact us etc… will need to be included.

Backend of website will need to be simple to operate.

Website load and bug testing will be required as part of the website build as the site is to be for up to 2500 users per quiz.

Project to be paid in instalments with ongoing service/maintenance to be agreed at the end of the project.
Website is to be hosted on Godaddy server.