Customizations for content sharing theme

Recently we have established a website that is similar to (indeed a clone) of upworthy. Please check our website: [login to view URL] We share interesting stories and videos for turkish internet users and we need to step up for a better unqiuely customized theme. So we need clean and beautiful style as described below -Single post design like this [login to view URL] : borders, resized sidebar, ad sections and sticky share buttons -Header should be as simple and stylish as [login to view URL]'s header -Other trending stories below the post content and "view comments" button, which scroll downs to comment section below the "other trending stories" -As we are going to change header we need to reimage homepage too, it's better to have a good background pattern, some touches to content boxes, it would be better if we had a flat design. So basically it's a theme customization task. Please bid accordingly. Thanks