Prestashop theme

Hi,

I need a fully responsive theme for my prestashop website. I found a prestashop theme that I like and want to buy, however there are a few modifications I want to make to that theme, the bigest of all is to have it fully responsive design and add the category block somewhere

Here is the link of the theme: http://arundo.promokit.eu/index.php

Please let me know if you are able to assist

thanks