Hello there,
I have gone through your project detail, you want your website updated from prestashop 1.4.10 to 1.7.3.3.
We are a 10 year old IT company with highly skilled designers and developers to work on php, Mysql, Jquery, Wordpress, OSC, Magento, prestashop, OpenCart, Mobile development, iPhone, Responsive etc.
It would be better if you come to have a close discussion over chat .
Best Regards
Harpreet Singh