Build a e-commerce website with a backend for window shades

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Build a e-commerce website with a backend for window shades
We are in the business of selling window shades. Each size has a different price. I would like a website with the following:
-in website chat feature
-backend admin so I can update pictures, content and prices, etc
-added features of the window shade will increase the prices
Website to duplicate: [login to view URL]
See how they have a a menu of questions that adds up the price. And the pricing is instant.
In your bid to us, please tell us how you plan to allow us to have different prices for different sizes.
Sizes will be:
Length: up to 144 inches
Width: up to 144 inches
Each different combination has a different price. Need a site that looks ultra modern and is easy for me to update.
Skills:
Website Design
, PHP
, HTML
, Graphic Design
, eCommerce

Company info

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