Agree wholeheartedly. I think it is an interesting and unusual addition. I like it and would consider buying it if I collected WW1 German in any serious way.
I can also see the points about whether it is a 'real' vehicle with any basis in historical fact. But I also recall from my own days in the military that some of the mods we did to the vehicles (here in the West and when I was based with a mainstream unit) could completely alter their appearance from their usual 'issue' form. Things are modified for expediency and photographic or other forms of visual 'documentation' are not always a priority. <b>Plus modifications underwent modification as knowledge and experience grew. </b>Soldiers do what they can to make their lives more comfortable and if they can get away with things they will. No doubt any serving or former soldier the world over will recognise and agree with this.
So, just to completely write a vehicle mod off as being a fantasy, just because somebody has not seen any photos or other 'formal' documentation that shows that <b>specific</b> variant says more about the actual (as opposed to academic) knowledge of the individual, IMO. And a vehicle that looked like 'X' at the start of a year may be completely reconfigured and look like 'y' six months later. Just because no photos turn up of the the former or latter does not mean it was not the case.
This vehicle may well include some assumptions based on what is known of the Kaiser's staff wagons (note the plural... believe there was more than one). So what? Is it feasible? If we are going to split hairs is it any less historically accurate than any of our imaginative dioramas and setups that we create?
.jpg)
