Hello,

You can do this by selecting the pricing type Call for the price or Email for the price while editing the product.

By this feature, you'll have the seller contact details in the product.

This is the link of different pricing for products. You can also check it out.

Different Pricing type

As for the rating of the product, you can disable it from Global Config > Frontend display options.

Thank you

Спасибо, вы меня не так поняли..
Мне нужно, чтобы гости сайта видели название продавца и его контакты

Hello,

You can disable checkout option from global config. That way in your whole shop add to cart or buy now button won't be visible.

As for seller details, you can select the store pages for that. In that seller needs to fill their information and customers will contact them according to that.

Thank you

You do not understand me. Look at the attached picture. It is necessary that the name and phone number of the seller displayed at the bottom of the goods. All fields of the seller are filled. How to show these data (the name of the seller and the phone) in the product?
Thank you very much for the answer!