Anthony,you can run around on three of the sidings-(named the gantry,the Fert and the through roads) with hand points at either end of the yard and motorised crossover points with a shunt signal at the Manulla end to allow access to the mainline,
In the good old branch train days,there was another crossover at the platform to allow the loco off the branch to run around,but this was removed when the Mini CTC was introduced as its only a 2800 railcar that uses that road now,
If you have the space which I think you have-then I would put in some points in,as you then have lots of options with locos coming in on the CPWs,running around and coupling to either a timber or standard set if wagons to work back out again-as has been done in Ballina on several occasions in the past.