E-Commerce web design

I’m looking for a web design company who can provide me good service with competitive affordable prices.

Please find below things I would like to have in the desired website:

- Email for administration (2-3 emails)

- I need to create an online mobile phones shopping website where there should be section for item (mobile phones).

- People can check the products and its specifications and prices.

- Prices can be changed as per the quantity because the website will sell retail as well as wholesale.

- Users can register when they want to buy and can register for newsletters/promotions.

- It will be mainly in Arabic except the section for vendors/suppliers to be in English.

- The section for vendors should have the options for them to register and create an account in order for them to register their products that they want to supply.

- In the future, we might offer online payment.

Based on the above, appreciate if you can send me quotation with time frame.