Just curious?? How slow is your RV? I drove and older (81') RV there last year towing a 3000' fire art project and made it there in 7 hours behind the wheel. We left Oakland at 9:00 am and had time to set up camp and put our project on the Playa before dark. The only REALLY slow part was the climb to Donner Summit.
Those who think they can and those who think they can't are both right.