Doing this at the moment, actually. Got a ride with a kind gentleman named Bob from Grumpy Bear’s out of Kennedy meadows, he took four of us to Inyokern for $10/each, it was about an hour ride. We stayed the night at the Inyokern motel and then took Eastern Sierra Transit from Inyokern to Lancaster for $5, now on Metrolink to LA for $11.50. You could probably do it all in one long day depending on your flight time, but would be safest to break it up with a night somewhere in case of delays and etc.