My Mack CH613 dump trucks and Cornhusker pups arrived the other day, and I have a complete pair in primer now. This Mack is a new truck model for me, and already one of my favorites. A tractor version of this truck is already on Shapeways, and I am looking to order a test model very soon. The only difference in the cab is that I added air horns to the tractor. This detail I omitted on the dump truck version. I also have a sleeper version that is still in design.
The hitch plate on my dump trucks matches up nicely to the tongue on the pup trailer. It's only a simulated 5" ball hitch, but it is none the less an operating hitch on my N scale model. The pup trailer shown here is the spread axle version, and I also have a triple axle version in the set.
I am most pleased with the printed "MACK" in the grill. These white primered models don't photograph the best, but I was anxious to share them. Soon they will be ready for a construction site after I get them painted.