Hey Jeff — thanks for the kind words about the site!
Are you traveling solo? If so, you may be able to hitch a ride up the 395. Another option is a private shuttle. It’s pricey, but you can reserve in advance and it’s easy.
Here’s what we did on our JMT thru-hike. I parked my Xterra at the Whitney Portal, then hitched a ride into Lone Pine. Spent the night there, then took Mt. Whitney Shuttle service all the way to Yosemite Valley.
You might be able to find someone else who you can share a ride with. If you’re on Facebook, be sure to also check out the excellent JMT Group.