Android App starting from an e-commerce site made with OpenCart

Hi guys, I am looking for a talented Android developer to create an Android application starting from an existing OpenCart website. I am interested to sell my products (pizza) and i need something similar to this one. [login to view URL] Also i am looking to develop an application that will not involve any other monthly costs for my application and i am interested to do it with one of these tools: PhoneGap Appcelerator Titanium Sencha Touch or very similar platform. I am interested to publish it in Android app store. Required experience with JSON. I have experience as developer so you can speak very technical and tell me how you plan to do it. If you are the right developer you can start today. Bid your price, don't take in consideration that i've selected simple project.