I also work in Wanchai, but near Tin Lok Lane. Though I saw your posting for the gathering last week, I dont' have time to join. Maybe next time, I hope to join your lunch.
Do you know that there is a Import / Export shop in Tin Lok Lane? Recently, they have some more baby / child autumn (thin long sleeves T-shirt or Jacket) clothes available.
If you pass by, you can have a look because it's not too much. It's just HK$10.