The green addition is just a Fleischmann Bavarian origin Packwagen (cat 5090-02), also dated for Epoche IIIa, I put this in to make the formation more prototypical, because it could obviously double as a 'Mannschaftswagen'.
Glad you like it, with the stakes in, it looks the bizzo. I paid 56Euro for it, new.
The background scenery here is the Vollmer 'Schongau' set, cat 6110.
I'm not really anal or anything, but in the scene below, 98 810 was/is a Bw Schongau (BD Augsburg) based loco (Fleischmann cat 409803)!!
The Packwagen is also BD Augsburg AU 116 659
Happy New Year, mate.