Fishmonger, I'd call Yosemite on the phone.
Phone menu: 209-372-0200
Within the menu, Wilderness Permit info menu: 3
Under that menu, the Public Info ranger is: 5
At 3, 6, it gives info on obtaining a permit, but you are looking for a special situation. I think the recording said permits were available through the end of Sept. So ask the public info ranger about October. They might try to discourage you, or they might agree to mail you a permit.
Please let us know what you find out.
