Achilty - Testing Electrics

Achilty is a new OO Scottish based layout i'm building.
A fictional branch extension to the Strathpeffer branch which i'm saying stayed open to serve the quarry.
I'm new to DCC and by using a door that i've cut in half all the wiring is surface mounted.
This is the first test running. I shall insulate the wiring joins etc in due course.
The 158 chassis needs swapping into my Provincial Scotrail one.