I think the name "VX Run" is fine as the VXers "host" the run...everyone is welcome. Kind of like you don't have to have a Jeep to go to the Easter Jeep Safari.
I have wanted to do Eliphant Hill and have not done it yet.
As for trail selection it sould be stock friendly but at the same time offer some challenge so the driver can get a feel of what the vehicle is capable of. That was the balance that Todd always shot for. That way newbs feel more comfortable on future trails.