Phpbb mod add-on

OK, I have a phpbb board that has the cash mod ( [login to view URL];highlight=cash ) and the shop mod ( [login to view URL];highlight= ) installed. What I'm looking for is an add-on to the shop mod that would allow users to open up their own shops and be able to upload their own images to sell for the fake forum cash. A bunch of people have requested this at various phpbb mod sites, but nobody has made it yet. There is an addon made for the shop mod, but it only allows users to buy from the board shop and resell in their usershops. This is NOT what I want. I imagine this wont be TOO hard to make this mod since it is an addon to an existing mod. Features needed: * users can open their own shops * users can upload their own items to sell in the shop * users choose quanity of each item to sell, and how much to sell item for * users must pay admin to open a shop (configurable in admin panel with a yes/no option) * users have the options to restock, close, open their shops * all items sold will appear in the purchasers inventory * an item tracker to see who sold what to who * admin has the option to close any shop