My Progressive Industries EMS 30amp install is on page 73 of Vegas/Axis Mods
I had to add a couple of 1" x 2" strips on the wall between the studs to secure the EMS.
I left the wired remote on top of the EMS with double stick tape because 99% of the time I don't need to see the info.
So if needed, I can look under the hinged cover.
And the 13' cord wasn't long enough to get it to the front entry steps where all my gauges are located.
I suppose that I could fish-line and mount on the passenger side wall in the master next to or above the thermostat.
So for you, I would mount the wireless display on the front wall entry area.
Page 73 - Vegas/Axis Mods