website for best pc accessories

I want to build a website similar to this website https://gg.deals/deals/ I want my website to monitor lists from several websites such as this https://www.pcgamer.com/the-best-gaming-mouse/ and give me for example: the best "mouse" by getting the average star rating for each item and also monitor the website to track the list for any changes on every website such as tomshardware and pc gamer

please note that I will need you to apply this to a template that I will buy so you don't have to build the website from scratch, I will also provide the design.

please give me a flat fee for the price for this project.