Dobrý den ladiznet,
just found this thread, very, very interessting thing!
In 2014 I was in Krima for taking pictures of the museum and the running " Hurvinek" , alias M131.1
The countryside of this area is more than beautyful ( but not the windmills ...).
Wish you all good luck for this project, that seems to be very professional
With the number of coal-trains, there surely will be never boring times...when the tracks are complete.
The TTfilgran tracks give a perfect look, but I heard the turnouts are not very reliable.