The two coats of Acrylic paint made a difference to the roof, making it harder and filling the course grain of the Balsa. Next came the base plate, I made this from 2mm thick plastic card with 2x2mm strips of angle along the sides to which I glued some T shaped strip to replicate the base in the photo.

Next came the bogie frames, these I cut from Slaters plastic card but the top section I cut from some French card which is softer and more 'bendy' than the British card, this enabled me later on to spring the side frames apart to fit the axles in place.

I added some detail to represent springs, axleboxes and pick up bars, drilling the side frames and attaching the bars with wire bent to 90°. I attached the bogies to the base with 8ba nuts and bolts, the nuts set into the base with Araldite. This how it looked prior to painting

to be continued