Shells are pretty light, I transported the ute on my timber trolley on the trailer to the blasters and then on to the painters with no issues until we went to push it into the spray booth. The small castors fell into the grate of the floor - took some prising out! (Naturally the width was a perfect fit so both wheels could drop in at the same time!)
Just rolled it on, tied down the trolley, and used a couple of ratchet straps through the door ways for good measure. Trip was about 100 km over rough roads and on the highway.
Sorry I forgot to take a photo of it on the trailer - busy day that day