ios application/website

looking to make a ebay/amazon wholes sale app for stores of all sorts and products all around so i can market by walking into stores and try to attain them as a customer. also looking or a expert in the app business marketing feild who knows alittle something and has ideas of there own that they want to scale threw america and around the world as a goal i am open to that let me know if you hav anything to bring to the table.