May take a bit of fenagling to get it to go through the one repeater. Also may be unreliable that way. Repeaters are supposed to give options, not be the only path.
Sounds like a perfect place for a Long Range device if you really want to use Z-wave. Assuming you have a hub that can do LR? Check out the line of Zooz switches, I think they are all LR at this point. I have links in my driver post: [DRIVER] Zooz ZEN Switches Advanced (and Dimmers)
