Welcome to my world. I have the same problems with trying to get good ingredients as they just aren't available up here. If you're in Anchorage, you might want to ask Natural Pantry if they can special order some flour for you. They're the only retail store where I've found even one of the flours discussed here, Giusto's Organic High Gluten flour. Not what you're looking for, obviously. The only other thing I can think of would be to call L'aroma's Bakery at Sagaya's grocery store and ask what type of flour they use in their Neapolitan pizza's. They're the only place I can think of that uses a wood-burning oven to cook their pies. Speaking of ovens, can I ask what type you will be using?
If you have any luck, please post your results.