I have tried DNN and nopCommerce. After going through their source-code, I realized they are not that easy to customize and need a fair amount of time to their documentation before any changes can be made. Also, they are pretty huge, as they cover up every single aspect of a CMS, from Page to Catalogue to Menu to SEO and so on.
My requirements are pretty simple; i just need the backend to add products and categories along with store handling functions. Other things like pages and menu's need not come under CMS.
So, Is there any simple .NET CMS that can help me speed up the development process, or should I develop my own or use one of the two mentioned above ??