Related Products SHOPIFY settings/customized

Note: it says post in ends in 29 days , i will be deciding very quickly I have a site with that need all variant, and rules to mirror old site in related products. (view here https://bradleyfurniture.myshopify.com/) The related products function currently doesn't show because i have to pay. This site has related product that are only organized by collections, but it will need look exactly look like anoter example. I need someone to mirror old site to the current site so that all related products are the same. the old site was on magento, so if there is any data that can be organized with the settings of the shopify plugin 'Automatic related products' that might be a way and because i dont know the products very well, i do not have these in excel spreadsheet or documented, 1. let me know how you will do this 2. we can use other plugins than automatic related products. This particular plugin has 'type' collections already set up 3. how long will it take? this should be easy if you know what you are doing, thanks again.