Murtoa is the final station in the section I'm planning to model, which is Deep Lead (Melbourne) to Jung (Dimboola) with the main stations being Glenorchy, Wal Wal, Lubeck and Murtoa.
While not exactly to the correct size at the moment, this is the SCRAM plan for Murtoa based off of the 1951 signalling diagram. Below that is a prospect for a modified eastern.
An idea I had was to make a couple of changes to the up end of the yard, moving Post 2 in the up direction towards the Melbourne end of the yard extending the 'loop' of No. 3 and No. 4 roads and also extending the No. 1. So the 2 DC becomes a RH point instead of a double compound.
The parts listing generated out of Scarm, but not for the modified arrangement outlined above.