Those were not sold in the States. I got mine from Peterkin Toys in England. I traded some 1/6 scale pieces for the shipping costs to a friend of mine there. They are sold on eBay, but are pretty pricy. GI*EDDIE I stay away from cyanoacrylate glues unless I am gluing metal or dissimilar materials (wood to plastic, metal to wood etc.). MEK (testors liquid, various plastic model glues) for polystyrene or one of a number of decent ABS plastic glues creates a chemical weld in plastics. Makes for a stronger bond that does not degrade as quickly over time as cyanoacrylate glues. That has been my experience anyway. While I have just gotten into customizing 3.75 in or 1/18 scale military vehicles I have been a 1/35th scale armor and sci-fi modeler for 32 years.
Every army needs a generator trailer. I like doing oddball stuff. One of those little truck cabs is going to be used for a FDC (fire direction control) truck. I have plans to do an outdoor diorama with it set up as the power source for the FDC truck and two batteries of 105 howitzers (GI Joe mountain howitzers). Need to strip the decals and decal gunk of the howitzers and pain them.