ecommerce website

I am looking for someone to develop an ecommerce website for me using Shopify just for one product. I have a rough idea of the overall design, however I am open to suggestions from potential developers. I know that when building this website I need to include a shopping cart and a payment gateway, so that customers can purchase products on my website. Additionally, it would need to have product listings. If the developer feels any other features would be beneficial, I am open to hearing those suggestions.