These KBScale wagons are all based on prototypes made by Hudson using the "Rugga" skip chassis. Most industrial lines bought their wagons "off the peg" from Hudson or one of the other manufacturers of similar equipment, rather than have bespoke-design wagons made as many of the better known narrow gauge lines did. The kits are nicely detailed and not at all difficult to assemble, although like any kit they do benefit from a little time and attention.
Although I haven't yet made enough couplings, all the wagons are prepared and ready to have them fitted, as previously described. So they are just about ready for painting, but first I will distress the deck of the flat wagon a little, and I need to find a way of making those skip bodies look battered and used. I've heard of people using a blow-torch to soften the thin plastic but even if I had one, I'd be sure to melt or burn the plastic instead!