Slowly making progress, no trains for a while yet

I've run out of 50mm insulation board so I am going to measure what else I need and order the remaining stuff for 1 delivery.

The depth of the roof framing will only allow for 25mm insulation board, I'll need MDF for the baseboards and 2" x 2" for the legs.  I already have some 2" x 1" and 3" x 1" for the battens.