paypal ecommerce site frontend first start

I am doing a simple app to start with. The functionality is the usual user/merchant signup with contact info and payment detail, submitting payment API when initiating payment or billing(and check status for success/failure). I am looking for someone with experience building ecommerce site frontend using angular, web service API such as paypal, using bootstrap to make it pretty and responsive, and finally package this into mobile using phonegap. I will supply visual images or something to start with. Also, I will supply accounts for testing purpose.