my "Schutzenpanzer" book from Ryton, and it appears the ausf C had the specialized interior with the rear seats replaced, but the ausf D had both the front and rear seats left in place. There are only plans for the ausf D, no photos, so I do not know how the pioniere equipment was stowed in the ausf D vehicles. There was a tendency later in the war to make most weapons and vehicles as standardized as possible, and add the special equipment as needed. Certainly there were no signs of special stowage arrangements in the ex-Fort Knox '251/7 ausf D now in Germany. I have both B&W and color photos of that vehicle I took in 1973 when it was outside and well lit. Perhaps I would have taken better shots if I had been well lit also, but that is another story....
The rear stowage bins are missing from this vehicle but PanzerTracts shows the bins in place on the plans for the /7 ausf D.
If you are doing the '251/7 ausf D, I'd suggest building the kit as in the kit and adding pioniere tools and equipment around the periphery and behind the seats. I have not seen loading pans for the /7 ausf D, and I suspect they may not exist, since they had been done for the ausf C. The German manuals in the National Archives don't have any stowage diagrams for the ausf B (late body) SdKfz 250 either, only the ausf A. Remember that brackets and clamps were usually labeled with painted descriptions or decals, so the crews knew where to place stowed items.
