You could also function as a broad returns resale company, front a portion of the money for the return fix/dump products in house and resell them at a discounte

You could also function as a broad returns resale company, front a portion of the money for the return fix/dump products in house and resell them at a discounted price. Then adjust the percentage you refund the seller based on what type of item it is and how much of there stuff comes back unsalvagable. Target resale at the developing world/people on shoestring budgets/startups.