Alright... I am doing Version 4 of this. If anyone is able to convince Scawen to give us at least 600 layout objects more, now it's the time. I have ran out of limit and I am playing with objects to maintain in both visual quality and cheat proof.
I was suggested to use track path objects... but I also saw a flaw in them; they are too brutal.
EDIT: For as clarify: Because of already existing path requiring to have height limit of 4,5 meters ( tunnels ), I am lowering the hand-made bridge also to similar numbers. Now currently resting around 6 meters. I am also widening certain sections a bit and I am visually attempting to create more "visibility" around the track.
This is tricky... this starts to indeed becoming tricky.
EDIT: Version 4 is available, download it from first post.