Just notifying you of some restocks I've found, and also wave 5.
I believe majority of these only ship to the UK. In terms of NiB collectors, I have ordered from Argos and GameStop and both came promptly and in good condition.
Marth is becoming very common in all linked sites. Shulk is appearing in a lot of Argos with the Fire Emblems appearing in various Smyths store.
All of Wave 5 is common in the UK! If I wanted to, I could gave gotten all four of Wave 5 with ease, but instead only got Zero Suit Samus, but I plan on getting Palutena.
You shouldn't have trouble finding any from this wave!
Make sure not to buy off scalpers, these will be easy to find yourself!