Hi,
I can start now, I have gone through your project ("Website Integration with Google Merchant")
requirements and found myself as a best available freelancer for this project.
I have Completed many complex website in PHP and Wordpress with custom Module/plugin and templates including Booking, wishlist,
Security, shipping, Multi Store, Auctioning, Multilingual etc.
I have more than 8 year experience in PHP, Wordpress, Prestashop, Javascript
Please take a look few of my latest work done:
[login to view URL] (my Company Website you can check my portfolio)