Hi,
I understand your project scope completely and I can add Arabic as an additional language for your dashboard and the front end as well.
I will also rewrite the entire site to make the whole site RTL [right to left]l I can get this done very fast and effectively. I assure you of my professional services.
I am a Web Developer and Designer with having skill with MAGENTO/OPENCART/WORDPRESS/ Ecommerce/PHP/cakephp/codeigniter /MYSQL /CSS3 /HTML5, API, Payment gateway, and experience in Photoshop,UI/UX,logo, web/Graphics designing,website mockup, Twitter Bootstrap,landing page.
Do contact me so that we can discuss further.
Thanks.
Charles