Online Materials selling website & App

I need a new website. I need you to design and build a website for my small business. we need a online selling website for our material. it should be userfriendly to us and our dealers and consumers. We would be posting our material on website so it should easy to upload itemsand there details. Also most of the stuff in our market deals with measurements of materials so we would like to be automatically calucate and depending of measurements it would tell the consumer the price. Also it should give option depending on quantiy purchase . Also if possible payment acceptance and bill generation should be available. Other details you can generalise as per current online market. we would need your question and the time you will take to complete it. we are thinking of App development too. But 1st prefernce with website. but would like to see quation of app too. please do provide with current example of yours if any. Last day of summiting your question is 14th October. [Removed by Freelancer.com Admin for offsiting - please see Section 13 of our Terms and Conditions]