What do I need to achieve this in prestashop?

[medoampir]

I need to know what of these is available in prestashop by default and what needs a module. and what module do you recommend.

I want to build a website to work as a market place where

• the user can register as a buyer or seller.
• viewing the product page can show different sellers of that product with their prices.
• the website will work in catalog mode, no online orders can be placed.
• the seller will use the site as a POS in his physical store, (so he will use it as a POS and his products can be shown on the online store for the buyers)
• filter the search results with every possible (thing)