It's going to be extremely hot in Death Valley, but if you want to drive through with a couple of short stops, you could get to Ridgecrest or possibly Lake Isabella with a long day on the road and then continue to Sequoia NP next day. The problem with that is that you are leaving yourself little time at Zion NP if you are driving in from GC on your first day there, and then leaving early next day to get across DV. I would most likely opt for more time in Zion, skip Sequoia and visit the 'BIG' trees while in Yosemite at Mariposa Grove, and as above, head to Bishop for the night. You will then enter Yosemite over the wonderful Tioga Pass [CA120].