Here's an email I received from Paul from Eastside Sierra Shuttle:

Hi Frank,

We have availability to schedule this.

Fare for 4 passengers is $125 in all.

You can be pretty sure that the Forest Service and the Contractor will
not be on the same page. This means that nobody has any idea of when or
where the flagmen will be or how long the delays will be or how many
times you will be stopped or where you will be stopped.

Lately I have been stopped about 2 times going up for about 1/2 hour
each time and 2 times going down for about 1/2 hour each time. Those
delays are occurring at what seem like random locations anywhere below
Lone Pine Campground.

Above Lone Pine Campground they have started the 8:00 a.m. to 1:00 p.m.
and 1:00 p.m. to 4:00 p.m. 3 hour complete closures.

But don't infer that 11:00 a.m. to 1:00 p.m. or after 4:00 p.m. or
before 8:00 a.m. will be clear sailing. Those times are when I have been
getting stopped for 2+ hours in 1/2 hour increments.

Do the math . . .