That's pretty cool! My own KiCad 3D renders are almost featureless because I generally end up converting eagle footprints into KiCad ones and.or putting in my own.
I'm not sure if I would like the components to be on the same side as the tubes, or anyway not all of the components. A clock I am currently working on has some on top and some on bottom, because I want those specific components to be on view.
yes is also a variant of dividing the components on top and bottom of the PCB.
This is the first prototype after Ian's submission.
I finish this layout to see how it works.
Then we will see what modifications are meaningful.