Write a plugin on WordPress

Good afternoon.
Web developer services are required. You need to register a plugin in WordPress to scrape (stealing) goods from other sites.
Required:
(1) Pull up: photo, price, description, details, variations of the product (colors, sizes).
(2) To the price to be adjusted, charge your interest and the price of delivery.
(3) Updating the quantity of goods every 1 hour.
(4) Before ordering, re-check the availability of goods in the basket.
(5) Continuous pulling up of new products.