As I've said before with hand laying track, one can't just go approaching it willy-nilly as one would when one is using Peco track and points. Suddenly you have to think about things like centerlines and radii and track spacings until your head hurts and you have to have a lie down. The main problem is that I keep looking at the loco depot and wonder how it will all work/fit in. The southern and eastern sides/ends of the station are fine as they are just straight lines mostly with some connecting curves, and only have the station platform to dodge. I'm going to have to mock up the engine depot bits (coaling/oil stage, shed, water tower etc) and see just what I can get to fit in once they are down.
On the plus side, I was reading an old copy of Railfan last night, and it appears that it was reasonably common for steam locos to bank trains south ' under the wires' to Pukerua bay. More 'quirky' operational interest.