Building a monoproduct shopify website

Hello, I'm looking to make a new Shopify site as a monoproduct. This is an antibacterial key. The template and the shopify site should look like this one: [login to view URL] The presentation video will also be placed at the top in the middle like the [login to view URL] website. I want a site like this with a shopping cart at the top and bottom of the site. I would also need the following modules: 1. The product has 3 color variations: Black, Gold and Silver. 2. Module at the top of the header with a countdown indicating that the delivery is free from 50€ (that we can modify according to what we want). 3. Module for upsells, the price should show 1 piece, 2 pieces ( cheaper), 3 pieces ( percentage cheaper), 5 pieces (price per key even cheaper), then 10 pieces. 4. Module to create the site in multilingual (French, English, Spanish, Portuguese, Italian). 5. A module simulating that a visitor located at a specific place has just bought the product, in a random way. It will also be necessary to provide an additional page for professionals who wish to make large orders (from 1000 orders) with their personalized logo on the key. The payment : The customer must be able to make a payment by : Stripe Paypal Bank Transfer Of course, all pages with legal characters must be present. How much could it cost? Please do not hesitate to contact me if you have any questions. Yours sincerely,