I have a ready made demo Ecommerce website
Features include
Owner
-Adding products
-Categorizing products
-Adding tags to products
-Setting product details such as regular price, sale price, description, thumbnail photo and photo galleries, etc.
-Owner can also add products with different sizes colors and even have different price depending on color, size etc
Buyer
-search for products
-filter product using price range
-pay for product using credit card paypal, COD, check, bank deposit
If there are features you are looking for that are not listed you may ask me using chat..
I may show you the demo site if you want to see it
Feel free to send me a message any time you are free