Welcome from The Netherlands. Maybe I can help you coping with the problem of limited space inside your flat. I build 4 layers of double track against the wall and put a motorised lift of half the layer length against it. I now can look nicely at all my trains very well and have plenty of space to put every wagon on the tracks.
You can check it out in my book on Amazon named “Our Model Garden Railway”. Should you have any questions please feel free to ask me.
