E-commerce site

I am looking for a designer that would be able to take my PSD design and apply it to an E-Commerce platform such as BigCommerce.

It would need to look a lot better than the usual off the shelf ecommerce templates hence why I would design the PSD's.

My client is has no web experience so the administration of pages, adding products, removing product, changing text and pictures on all the other pages needs to be simple and intuitive.

I'm not looking for a bespoke item here, I'm looking for someone to be able to apply a design to a product that is out there already. Your help in finding that product (should it be better than BigCommerce would be apreciated. Remember, the goal is once you are done, a novice could upload products, pics, text and edit the about me section.

We would need your help implementing the payment gateway etc.

I'm leaving the price blank on here, you will be picked not only on price but your understanding of our requirements and your ability to deliver.