For one thing, MOR as such no longer exists, IMO. I think MOR existed to go between "beautiful music" & rock. As you don't hear beautiful music much anymore, what you'd be taking about is AC.
There are no "currents" in softer music now, like there were in the 1970s.
WVLG in Florida, IMO, is the closest one will find, to the traditional MOR stations (at least, during the weekdays). It truly serves the community, has news on the hour, some public affairs and interview shows, but also----the music, of which some is AC, but from the last I heard, I'd say they need to weed out some of the harder-edged stuff, especially as the audience is generally of retirement age (hence, no playing of "Saturday Night's Alright for Fighting," which I heard on a non-oldies show on VLG).
What might work would be strictly the adult standards (the modern term for MOR, but again, practically no currents can be found) sprinkled among lifestyle/interview/news & such.
Also, to truly be full-service, it would have to be a station serving a smaller town, in which there is virtually no competition (read: no WNEW 1130 anymore)...
That being said, if somebody wants to steer me onto a live stream of any existing such station, I'm keen to listen.
cd <---note, one who has never worked in radio, but has been a listener.