Creation of an online store website

Good afternoon. I am interested in creating an online store. He must copy the availability of goods and update the goods from another foreign site, as well as calculate the cost of the order and the cost of delivery, as well as the possibility of placing his positions, video materials (from YouTube), news. Websites of organizations that are considered as suppliers of goods Text hidden. I need all the positions of one of these sites.
I'm waiting for suggestions!