Really, recommending hosted for lodging, especially when the OP specifies cabins?

Going to need decent Internet service to start, is it available to a rustic lodge and cabins in Pagosa Springs?

That's going to be a wiring nightmare to get reliable Ethernet to each cabin within the loop limits, and you're probably going to need to rewire the lodge rooms as well.

What does anyone in a motel/hotel use the room phone for anymore? Just calling the front desk, cause everyone uses their cell phone for incoming/outgoing calls.

Replace the sx50 with something modern that supports single line phones for the rooms. Get a SIP trunk for dial tone if there's actually any appreciable inbound/outbound calling.

There's lots of cases for hosted, but lodging just isn't it