Out of interest, how high are you going to be having your backscene and what does the viewing aperture work out at? Just something I'm currently trying to settle on/workout for a similar size 7mm project.
A very interesting and flexible track plan. Looking good.
Wish my woodworking skills were up to this standard.
Mick
Another suggestion: The lower fascia panels appear to nest. I suspect that they will need something between them to prevent damage to the surface finish whilst in transit - apologies if teaching granny, etc...
Best
Simon