Show the electrician the drawing that comes with the UPB switch. The diagram add really is having a neutral and hot wire to the switch plus using the regular switch wire.
Even if the electrician doesn't know what automation is; he ought to be able to figure out the electrical drawing as it is logical.
What is kind of neat for a 3-4 way UPB or Insteon switch is that you do not need to utilize the traveler wire and you can cap that if you just purchase two of the same switches. Just program the non load switch to talk to the switch with the load. You can have one switch that controls the load and many that control the one switch with the load. This makes for less wires and its easier to talk to the switches and configure them with Upstart. This is my opinion though and here I did cap all of the traveler wires between 3-4 way switches. An example of this is my second floor hallway. Each of the four bedrooms have one switch right outside of the doors. Only one of the four bedrooms control the loads for the hallway lights while the other three just control the switch with the load on it.