Hello SteveC,
Due to some travel and work constraints we cannot start hiking earlier than Monday (2nd July) and have to be out and back to Los Angeles by saturday.
We do not have two cars so cannot car shuttle. The nearest places from Lone Pine for car rental are Ridgecrest or Mojave and at both places they close by 5PM weekdays and noon on saturday

We have no family members in the area and it is a bit too much to ask friends for.
If we do not find a ride, as last resort, we will leave the car at Whitney Portal and take buses to get to Sequoia trailhead. This is not too ideal since it will take 1.5 days to get to the strating trailhead.
Life would be easier if the bus from Lone Pine to Ridgecrest was more frequent.