I've ordered it from this amazon link  (3 units) and I'd like to get some setup advice for my situation.

I'm an old apartment with very thick "pre-war" walls.  I have 1G FiOS in the living room  room, and I have ethernet run through an hole in the baseboard to adjoining room next to it so I can have a wired connection to a computer.

I'd like to get good wifi for my apartment, and also keep my wired connection in the adjoining room.

Is this the way for me to set it up:

• set up main PX50 in living room
• turn off wifi on Verizon device
• run ethernet from main PX50 through wall into adjoining room
  • connect ethernet in adjoining room to switch
  • connect computer to switch
  • connect second PX50 to switch
• install third PX50 in another room (no ethernet connection)

Alternatively, should I run the ethernet from the living room from the verizon device to the switch