Not much progress yesterday but a quite important step was completed.
First, I started to add a thin (3.6mm) layer of ply to the non-trackbed baseboard level so that scenery can be built on top of it, although I ran out pretty quickly and haven't actually attached it yet. They are cut so that they butt up against the raised section, which as mentioned above, has been built so that it can be removed to simplify track laying, working on the scenics at the back of the layout, etc. The plan is to eventually attach it so that it will still be removeable (e.g. not permanently attached to the framework) as if I ever move, etc., it should be easier to move. Anyway, you may spot a gap at the end of the thin ply base section - bad cutting by me. Doesn't matter though; it will be underneath scenery.
I also drilled pilot holes for the point motors and checked that nothing will foul the positioning of the motors under the baseboards. As planned (and with a bit of luck), there is sufficient clearance for the motors although there are a few places where I will be using the shallower Fulgurex and other places, Tortoise motors.
More importantly, I gapped all the PCB on the turnouts (with the exception of the 3 way, which has me a bit stumped at the moment but I'll get there), dug out my old Dynamis controller and a Jinty, and checked that there were no shorts, which there weren't. Relieved? Oh yes. And finally, as mentioned in my Status Update, I've started to fill the gaps in the PCB with Milliput. Good grief, how frustrating? Done two and a half turnouts so far (except sanding, got to wait for it to dry first obviously) and thought to myself that Peco's turnouts may have their faults but boy, are they easy to use.
Scruffy filler - I'm sure most of it will fall out when I come to sand them, at which point I will swear like a Docker who has caught his manhood in his fly