Organically-grown wheat straw and leached dairy cow manure available in Oregon?

Hey folks, I'm growing some Oyster mushrooms and I'm looking to buy a bale or two of straw from a field that has not been sprayed. Wheat straw would be best, oat straw is OK, too. Anywhere between Eugene and Medford on the I-5 corridor would be nice. I'm also looking for leached cow manure (from organic dairy cows if possible, so I can grow Almond Agaricus mushrooms). Please post info here or send me a personal message. Thanks in advance! MK