Hello Friend
I have read your project detail, you want to redesign your current website, you want this new website more responsive , you want to add more product , also you want build online store in wordpress, so in future you able to add product and make changes yourself,
We are a 10 year old IT company with highly skilled designers and developers to work on php, Mysql, Jquery, Wordpress, OSC, Magento, OpenCart, Mobile development, iPhone, Responsive etc.
It would be better if you come to have a close discussion over chat .
Best Regards
Harpreet Singh