This is looking good Andy and hopefully will give you plenty of fun shunting troublesome trucks about.
The auto frogs are giving me food for thought as frog power transfer is a headache I’m wrestling with for points I’m building in N where I was planning on using sliding switches with the operating black lever drilled through to take wire linked to the tie bar but there is so little throw on the tie bar I think the travel needed in the switch will be far too much.
One observation if I may? As soon as you offered up the Metcalfe stone it drew my eye to the platform surface which by comparison looks very blue. This may of course be an optical illusion caused by the camera, or not enough coffee my end.
Brian