My layout preparations have been on hold over winter, but I took advantage of a bit of late winter sunshine to lay the track. It's nearly all PIKO track, R3 curves and R5 points, with a few LGB bits and pieces.
The "track-side refuges" are for point motors and signals.
Still got the wiring to do but on schedule for a spring opening. You can see the red and blue wires in place. Quite a few connection points because I am planning to use current detection to automate the layout.
By the hatch on the RHS you can see the flexible conduit carrying the cables and another one to be laid where the black plug is.
The removable sections are connected using "bridge lift out" clamps from Glendale or in some cases by suitably trimmed insulated rail joiners.
The last picture shows the ballasting. In my previous OO life I used to hate putting ballast down, but it this scale it was almost a pleasure and much more like the real thing. I have used alpine grit. The track is not pinned down except where the removable sections are and will be held in place by the ballast (I hope).
Next phase is to connect the track power and test the track for running, then add the points and signals, before laying the rest of the ballast. Then buildings and landscaping. So lots still to do (which is a good thing)!