Glad you guys enjoyed the ride. As noted, you would not have made it over the Toiyabes from Ophir/Murphys to the Yomba. I was through there in October, going west to east. The east slope (Ophir side) is pretty gnarly even on lighter unloaded dirt bikes. I would hesitate to take a group over from east to west. Better going west to east.
You might want to go farther north up Smoky Valley and go west through Kingston Canyon and over. New Berlin is well worth a visit for the mill and other ruins. Ione is quaint. Icsyasaur (Sp) is worth a vist.
Caliente area is good too. Delamar, Pioche....
KTMs--300, 450, 990