Import of all goods from one site to another

Hello, there. Web programmer services are required. You need to import goods from a site that works for Prestashop to a site that works for Opencart. Import all products from the site, their (name, description, characteristics, photos, which are in the tables in the cards of goods with suppliers, articles of suppliers). In the product card, in the table with minimum prices, a maximum of three lines (three minimum prices from different suppliers) are shown. In the list of goods, together with the minimum price, each product was shown information (tyres - city, delivery, season; disks - city, delivery, disc color). These tables to make more attractive and that the information in them was displayed correctly, not cut words, so that everything beautifully entered. After transferring the goods, check the search module by parameters so that it works correctly; sort the order of parameters in the product search module, t. E. We went one after another first width, then height then diameter at the tires, and not, for example, height - diameter - width. I'll consider all the proposals. I don’t pay for prepayment!! Payment at the end of the whole project or you can consider the option of a phased payment.