I emailed them a couple of weeks ago. They are accepting resupply packages and holding them at the Colossal Cave gift shop (by the caves, not at the ranch). Looks like it's about a mile off trail, nw on the road at Mile 120.7 (mileage as per 2013/14 Data Book). Also the cafe next to the gift shop is...

Hi there. Throwing my name in the hat. I'm Alex, currently in Vancouver, BC, planning to start at the south TH on or around March 13th, going solo, going slow (or at whatever pace my arthritic body allows). See you all out there!