Blinds eCommerce Website(repost)

I am looking for a fully operational ecommerce website so I can sell my blinds nationwide. I need it to be able for people to enter their measurements and pick a fabric from the pictures on the website then go through to pay for them which will then send us an order for us to process. When a customer enters their measurements then there must be an option where they click a button and it works the price out for their measurements instantly. As an example if we enter measurements 55 inches wide and 89.5 inches drop then when they click get price then it will work out the price for them. They must be able to enter any size they require as this will be a mde to measure service for their blinds. ## Deliverables I will also need a option where the customers can enter their details in various measurments and they convert to mm.