Once the first radius was marked, positioned and secured using push pins the remaining yard tracks just had to measured from the first and secured in place with more track pins.
I used a 2" (50mm) centre on centre measurement for the track spacing. The remaining track work went in rather quickly after this, and all the remained was to install the crossovers that sit at about halfway on the yard.
The north yard ladder is installed, along with the runaround track and the start of the Wood Chip Mill spur too.
Hopefully the remainder will be installed tonight, and the wiring installed tomorrow along with the PSX-AR as the yard leads (north & south) form a wye at Harrisburg & Rutherford.