Building a part of my wordpress website

This is a Wordpress project. We need a phone management system on our site. I need 4 dynamic pages where the admin can add remove modify the content. I want the exact same design and functionalities as following: There should be 4 levels. The highest level should look like this [login to view URL] . In this level de admin should be able to add/remove/modify the device types from the backend in a user friendly interface. The third level should look like this page [login to view URL] . In this level de admin should be able to add/remove/modify the phone mobile brands from the backend in a user friendly interface. The second level should look like this: [login to view URL] . In this level de admin should be able to add/remove/modify the phone models from the backend in a user friendly interface. And the lowest level should look like this: [login to view URL] . In this level de admin should be able to add/remove/modify the phone repair components from the backend in a user friendly interface. It goes like this: device type > brand > model > device repair On the front end side we want the exact same design and functionalities as [login to view URL] We want everything to be exactly the same. Images, icons, font families, font sizes, paddings, margins, colors, shadows, animations, etc... If you are not capable of creating the exact same front end design this job is not for you. The admin side should be friendly and easy to understand. For testing, its okay if 3 devices are added. We will add in every model. One thing that is very important is that there should be an option to import data.