A modification of existing module in PrestShop (Product Category).

In-shop module for the product (u can see it on screenshot), which will for the main product take few another from the database with a similar prices. We need to custom this module, because this existing one shows only products form same category as main (we want to show products from all categories) and the prices of those products are very random. Other assumptions: - For each product, we need to choose some other products in admin. They will BE shown on the right side of the product site (screen) - The prices of these products will differ from the price of the main product by a few % (up and down). Example - On the screen there is a Amarone Bertani bottle. It's costs 1335 zl. So, on the section with module (right side) there has to be other wines (from which category, that's up to us) but their prices have to be more or less expensive, only around few % (what value of % - 3,5 or 10, that's up to us). So, for example 1 bottle for 1400 zl, another 1359 zl and another 1285 zl. - % value will be determined in the admin - Possibility to determine which products will be taken for this module (eg, by checking the appropriate category in the admin). To avoid a situation in which bottle of wine will have accessories in these similar products section. - There will be 4 or 5 products on this section so we need for example 2 products with higher price and 2-3 products with lower. If no prices will match, module should take products with the closets prices. I'm waiting for your reply (with price and delivery time) and questions.