I'd use 000 for bread. I haven't seen whole wheat flour but I haven't looked, I'd say the dieteticas (health food stores) should have it, though, in suelto if nothing else (bulk). Dona Clara is a great little baking supplies store in Once, Corrientes 2561 I want to say. Corrientes 25something, anyway. Or maybe 2651. Anyway, that's a good place to go for supplies, from cookie cutters to springform pans to pastry knives to cupcake liners. And they're super nice, and can tell you where to find anything they don't carry. They also carry a handful of edibles, such as almond flour.. (thinking some French, Herme-inspired macarons might be in order soon!!). Good luck with the flour search, let us know what you find!