Was in Lowes for some other things and found a couple Eaton plug in outlet switches in the back isle clearance section for about $10 each. Even if I don't use them for switches as I understand it I could use them to extend the range of the network. Their site still shows them at full price so...
Z-Wave on/off + dimmer control.
Grounded 3-wire power connection for safety.
Remembers and restores on/off status after power failure.
Built-in Z-Wave Plus signal repeater to extend network range.
S2 security and 700 Z-Wave chip for reliable wireless communication.
Work with all certificated...