My main use case is within 1km of my house, and largely within a couple of hundred metres of my house, so it's quite possible the devices I get can can just talk to each other.
With that said, it seems where I live there is a recommendation to use SF16 instead of Long Fast due to crowding of devices, which seems promising even though I don't know what that means 😅
I ended up ordering two of the T-Watchers and a T-Lora Pager and am looking forward to having a play!