Going to be in the Death Valley area in mid May. Can you drive through the park in a 40' RV with tow comfortably without problems coming from Beatty, NV to Lone Pine, CA.
I've done it towing a 5er, it was, well, cool. Rain when we went over the pass that changed to snow while we were in Lone Pine. I don't recommend it, period. This forum has a former CalTrans employee that strongly does not recommend it.