NJ to Vegas, Best route to take?

Once you get to I-40 there is Cadillac Ranch on the West side of Amarillo (although you'll need to u-turn at the next exit to get back to it), Meteor Crater, Williams AZ (stay in Grand Canyon RV park, walking distance to downtown), A lot of old Rt 66 including the alignment West from Seligman where you will encounter Grand Canyon Caverns that is a time capsule from the 50's tourist trap era (also has an RV park). As you go West on 40, keep an eye out for the Rt 66 signs at the exits. Interesting towns to see. Holbrook has an old Wigwam Motel, in Winslow you can stand on the corner, East of Williams on I-40 there is a Deer Ranch. Just West of Albuquerque there is the Rt 66 Casino that has a great RV park behind it. You'll see more trains than you can imagine. Sadly you will also see many once thriving tourist traps that are no longer open. Avoid the temptation to take old Rt. 66 into Oatman AZ (burros walking freely in the town) from the East....VERY STEEP, TWISTY DOWNGRADE...can be dangerous in a car, let alone an RV. You'll have a great trip!