NOW this is an awesome Idea! I hope your team will make it to success, it's a WIN-WIN situation for both shopper & seller's convenience while being able to deliver the best of the best products (on seller's end) and having the luxury of being able to have massive choices in a one-stop -shop way for shoppers. I hope dev team will make it through on ups and downs. This will really be one of a REAL-world solution.