This one should be easy to whip up.
The crane involved would be impressive as well.
There is a prototype for anything to model. 
Guys;
Never got a photo, but Roanoke, VA has one of the strangest prototype “kitbashes” I have ever seen. This transfer caboose had a common caboose steel chassis, but the “cabin” was the short hood from a Fairbanks-Morse Trainmaster - one end open to the weather. Inside that shelter was a very large potbellied stove. The “icing” to this “cake” was a pair of Wonder Horse hobby horses (minus their base and springs) painted white and bolted to the roof of the Trainmaster short hood! It made quite a spectacle everywhere it showed up.
Probably would be fun to model if one had the photo to back up their modeling.
Regards, David Meashey