Fab stuff. You can easily  get away with 4w wagons on such a layout, whereas, as you’ve realised,  long bogie coaches will overhang and look odd. On such a layout, less is more when it comes to scenery, but the tiny details such as lever frames or point rodding will make it come alive. Careful placement of the few buildings is also key to avoiding the overcrowding effect. I think this will be a brilliant layout - I’m also a micro fan for various reasons. Too many large layouts end up on the boulevard of broken dreams and I suspect I’d be on it before long! As Louis MacNeice remarked
 
	‘And because one feels that here at least one can,
 
	Do local work which is not at the world's mercy
	And that on this tiny stage with luck a man
	Might see the end of one particular action.’
 
	 
 
	He was talking about politics but it applies to micros!