Well, let me tell you my story about bridged sized cards. I live in Ecuador. Here poker sized decks are very rare and only avaible at a very high prize. When I began with cardistry and magic I thought that I wouldn't be able to learn cool flourishes and sleights because I could only find chinese plastic coated cards.They are an extremely cheap and low quality compared to standard bicycle deck ( for the prize of 30 chinese decks, I could get 1 bicycle standard) Nowadays I continue to use my crappy chinese cards but I've realized that it doesn't matter what deck you use, as long as you get used to it and practice enough.
Anyways, going back to your question. I think that there are bicycle standard cards avaible in bridge size. Good luck