Develop a Shopify eCommerce store. Need end-to-end development as follows:
1. Select a suitable theme
2. Customise this theme to preferred layout/design
3. Implement the Shopping Cart and Payment Gateway
4. Input about 70+ products into the store
Reference site (like the look and feel) : [url removed, login to view]
Freelancers without previous Shopify customisation experience will not be considered. Thank you.