hmm, have you checked the baking aisle in a grocery store? they always seem to have and unprocessed form of wheat there for bread
If you still cant find it, I suggest using any type of grain you can find in flaked or berry form ie triticale, spelt, etc, you could even use flaked barley
Edit:
I dug around a little bit, and found this
http://www.foodtown.co.nz/Shop/ProductDetails?Stockcode=272530&name=barnyard-poultry-food-wheat&search=wheat
its listed as chicken food, which doesnt sound appetizing but it seems to be actual wheat berries