My niece bought me a Canada hopper I had been looking for, but instead of RTR, it was a kit. While my eyes aren't what they once were — even with the magnifying light — I have been moving along until I got to assembling the trucks. The "instructions" only give you a completed picture and no instructions and, for the life of me, I can't get there from here. Any suggestions or help from anyone? Also, this kit looked as if it had never been opened but when I tore open the package that contained the parts for the trucks, etc., there are no couplers ... even though the "instructions" reference to them as if they were part of the kit. Again, any help available? Thanks.