Looking for large-scale supermarket/fruit and veg shop

Hi folks, an event I'm working on needs about 2kg of oranges for an event next week, but due to a lack of storage between all parties involved we can't just order online and keep them refrigerated until the day. Can anybody recommend a large supermarket or fruit and vegetable shop in Tokyo that I can swing by on the day and pick up the goods from myself? I don't need any crazy net-wrapped and graded oranges, just a big ol 2kg net will do.

by Ok_Television_7371