A turntable isn't an absolute requirement for a miniature railway, even those with tender locos. 'Shifting Sands' was based largely on the 15" incarnation of the Fairbourne Railway, and the Cleethorpes line, neither of which incorporates a turntable, tender locos running tender firs every other trip.
Cleethorpes plays host to the equipment from the Sutton Miniature Railway (Sutton Coldfield), which was a baloon loop arrangement, but despite this had no turntable so again every other trip was made tender first!
I seem to recall that the Stapleford Miniature Railway, in the 1970s format, had a traverser in the station between the platform lines, which was later incorporated into the shed area in the current format of the line. Both Fairbourne (12 1/4") and Cleethorpes have sector plates within the station areas but sadly neither is part of a run-round set-up. just shed access.