I picked up one of these a few weeks ago, and I have to say, for a $126 delivered I think it's a very, very good deal.
I had also picked up the WPL "military tractor vehicle" with the trailer and the M5 is an absolutely perfect fit on that little trailer. I started a thread about the whole deal so you can see more on that thread. I took the Ural cab off of the tractor vehicle and installed one of the World War 2 type truck cabs from JJRC. Those cabs are somewhat generic, but they look to me like a perfect match for a '37 Chevy truck. All in all, I think it's going to turn out to be a very nice little model.