Hi I will help you out to build your online store.
Bello functionality you will get..
1. Backend admin login from where you can manage your store like product category, brands, product details as well as some of your pages also like about us, contact us etc.
2. Your frontend page will be there with all required functionality like products view, Details, cart system, customer login, order history etc
Let me know your concern also.
Note : I am individual developer. I will help you out with basic seo as well.