Hi, I'm trying to take the Mt. Whitney Shuttle from the Portal to Onion Valley Campground on either August 11th or 12th, 2010 and was wondering if there is anyone out there needing the same? The cost for 1 to 4 is the same amount so looking to split the cost. Or is anyone coming off trail at the Portal that could give me (& my backpack) a ride to Onion Valley Campground? Thanks Laura