At a militaria fair in Belgium last weekend, I was lucky enough to find a complete one of these, with the folding typewriter desk and all chairs. I thought I'd post some photographs for your reference, and of course should anyone need more information or pictures, let me know!
First, my much-belated apologies in replying; I'm a freshly registered new member as I write this!
Many thanks for posting the excellent photos. I've done a lot of my own cabinetmaking and carpentry over the years, and if the appropriate key dimensions (basically, how wide, how long, how high, how deep and how thick?) could be posted, I and any other readers could readily fabricate replicas or at least offer some useful recommendation on how best to repair an original or make your own replacement for a missing or irreparable component.
Ethically, a reproduction would need to be clearly marked as such -- or at least not
represented as if it were
an original! For those with an interest in re-enacting, one may find that a replica would be more suitable for in-field representations vs. the use of an original, as long as the general appearance remains period-correct; many re-enactors groups are quite particular on this point. Still, given the sheer volume of examples produced during the war by a broad variety of contractors, a number of variations can be found even amongst the originals.