Community Portal Like Nexusmods.com

Im looking for a site looking similar to [login to view URL], its a website that feautures a front page of mods we also need a few menus at the top, and once you click you will be in a subdomain of that particular mod with the news&download links&comments from users. I would like to create something similar but another product we will discuss privately. It must have a backend panel for moders to be able to edit their descriptions and so on. There will be a premium subscription and those users would receive other download links that are not displayed to the rest. We will also have guests and members, members have the benefit of also seeing a diffrent link to the guests. We can gather a lot of the textures and design images for you as a coder, but we need a great, modern looking site of the likes of [login to view URL]