Wow, when was the last time an S class ran a freight solo?
What with QUBE operating the daily Maryvale Paper train, the daily Deniliquin Rice train, and the twice daily Kilmore East Quarry train, all with their limited pool of 4 G class and 1 VL class locomotives available to Broad Guage, I think it is likely we will see hired heritage locomotives in semi-regular use, at least until QUBE are able to get their hands on another more modern, more powerful BG loco.
QUBE have regularly used both S313 from Steamrail, and X31 from SHRC, so these loco's seem to be in favour from a spot rental point of view for some reason.