" in 1937/38 the Omm wagon was designed from scratch with a maximum load of 24.5 tons and a loading length of 8.72 metres (28.6 ft) (as opposed to 7.72 m or 25.3 ft on Om wagons). Construction began in 1939."

Pz I: length 4.02 meter (two of these would leave 0.68 meters for tie-downs et.c.)

Pz II: length 4.81 meter (two of these would be too long for the load area)

A little more than two feet of space, one foot of spce between the two tanks (very narrow bout could work) and half a foot at each end. At the ends there is space outside the load are (over the buffers) so handling those tie-downs would be uncomplicated.
/ Robin

Two x ommr, 1 x 265, 1 x Pz II and some motorcycles.
If the 265 is the command tank of the unit then two singles and one with a sidecar could represent the despatch riders.
A Kübelwagen is 3.74 metres so it could fit together with the 265 giving 3 feet to spare. The motorcycles will also fit sideways to give some variation even if there would be plenty of space with the Pz. II.
The ommr is 10.1 meters long measured over the buffers which results in 28.8 cm in 1/35th, almost 11.4 inches.
Two of these together would be a little short of two feet long
/ Robin

Hi Greg. Found these picture, first one I think is colorized, anyhow. you can see a lot possibilities to load your wagons.



All pictures come from eisenbahnstifting.de and are for reference and discussion purposes only.
Look up this link, very useful.
https://eisenbahnstiftung.de/bildergalerie/Reichsbahn%20im%20Krieg?search=&br=&page=1

Kind regards,

Robert Jan