Hi Peregrinus - I've done one for you - the 'long hedge'. The workflow I used was to put the .fbx into blender and export to .x. As I'm more used to Fragmotion I then tweaked the .x in there (scaled up a bit and moved to make it work better with the 'b,b' grid).
The original artist (in link above) posted this -
Provided by Nobiax.
CC0 1.0 Universal (CC0 1.0)
Public Domain Dedication
No Copyright
This license is acceptable for Free Cultural Works
The person who associated a work with this deed has dedicated the work to the public domain by waiving all of his or her rights to the work worldwide under copyright law, including all related and neighboring rights, to the extent allowed by law.
You can copy, modify, distribute and perform the work, even for commercial purposes, all without asking permission.
So absolutely free to use or to modify in any kind of work (personal, commercial or else) =)
So I assume it's OK for me to attach here for you.
It might need more tweaking, but it's a start
Cheers.