Hi there,
I have read your project description that you need your WodPress site to be able to support Ad banners, it should have a modern look (with spaces used) and that its input engine functionality as well as customization should be retained (i.e, intact?).
I have more than 5 years of web-developing experience in WordPress, html, css, js, jquery and bootstrap, have developed several modern looking sites, some right from scratch and also done tasks like these.
Please leave me a message if you are interested.