no idea - but if you are totally stuck, why not call into your local italian restaurant and have a chat with them - they might point you to a wholesaler.
do you have any of those big Turkish supermarkets in Dublin yet? great for this kind of thing in London and great for loads of other goodies too at cheap prices.
I'm sure that I seen those containers in Caterworld in Clondalkin. It's a huge, mainly oriental, food warehouse but they allow the public in as well. Cash only.
Here's a link. It gives the address in english - about the only thing on the site in English.