GE Smart Switch - 4 way Switch Wiring?

I have a GE Z-Wave Smart Switch and two addon switches I am trying to use in a 4-way application that controls the lights to a ceiling fan for the actual fan. The wiring to my switches to the lights matches the attached diagram with the exception that there is a neutral line in SB1 for another circuit to the same ceiling fan. Is there any way to wire in these switches or should I go with some type of relay switch at junction box by the switch.