OP, take some of these recommendations with a grain of salt. Mostly old codgers who think 300mi a day at 50mph is a long day, and then have to stop for a day to let the Metamucil work, lol!
That said it is a lot of driving, figure the cost of flying out west and renting from there vs a cannonball run across the US and back. With 4 drivers, non stop you can get to the west coast in like 2 days. Wouldn’t be my preferred way to do it though.
What is totally feasible though is to fly out to Vegas, Denver, Seattle etc and do a loop from there. You could easily go up or down the coast, across to Vegas or the Rockies and back in under 3 weeks and see some sights.
Yes RV is like driving a big Uhaul. It’s not rocket science on the open road. Save the best drivers for the city and the mountains!
Have fun!
2016 Ram 2500, MotorOps.ca EFIlive tuned, 5” turbo back, 6" lift on 37s
2017 Heartland Torque T29 - Sold.
Couple of Arctic Fox TCs - Sold