Welcome to the forum Rustam. Thank you for the photos. Enjoy building your railroad with your son. Do the Russian railroads still use 5 foot ( 1.5 meter ) gauge track?
Thank you. If I understand correctly you say the 5 foot is still the usual track gauge today for most of Russia.
Why wait?
There is no reason why you cant set up a small section so your son can run the trains. I've done it and it makes the project more enjoyable. you get to run the trains which reminds you of the goal and gives you a little boost.
Very nice rustam. It's nice to see models from other parts of the world.