One can't have a Freya limber radar without a portable power source for it to run off of now can they? There is one model manufacturer that offers this kit in 1:48 scale, which would have been quite sufficient, but I was unwilling to pay the cost plus the shipping from eastern Europe for it as it would have totaled well over $50.00. Instead, I chose to scratch built it myself. As a terrain piece I took some liberties and chose to model just the important stuff. I only had two matching wheels in my spares box so I left off the spare tire over the tongue of the trailer. The entire trailer is scratch built from polystyrene sheet and model sprue with the exception of the wheels and the towing eye on the tongue, both of which are lead. The power terminals were scratch built up from styrene stick stock and stretched sprue.
More photos and info on my blog here:
http://ajs-wargaming.blogspot.com/2017/01/scratch-built-28mm-german-sdah24-heavy.html


A historic photo of one powering a German radio truck:
