Here are some pics of how I got on;
Im quite pleased with the poses. I had wanted an extra trooper holding up a drip, but I don't think the diorama suffers without him.
It was quite difficult to get a good shot of the piece through the crossbars, in future I will take some close ups before I glue the miniatures in.
For the wounded guardsman, I used a catachan bare torso which I added greenstuff to, to create the ripped open shirt
Thats two trucks done, just two more to do. If anyone has any suggestions for cool dioramas that would fit in the trucks loading bay, I would love to hear them!