Cms for a discount site, are there any options?

Question

CMS

Hello. Please tell me if there are ready-made cms options for a discount site like hotukdeals.com, pepper.ru, the closest thing I found is Coupon cmc 7, but this is a little different, you need to change a lot. Requirements: each user can add discounts on products, a comment system with the possibility of subscription, user evaluation of added discounts and, most importantly, some kind of menu where the user receives updates on his activities: according to his discount estimates, added comments in discussions, etc.