Just remember that this isn't a game of "horse shoes" or hand granades. CLOSE isn't good enough, you need to be right on the money with your tolerances and settings to get it to work properly. You don't want any slop, and you want everything tightly fitted and things that should move smoothly, moving smoothly! The pole it's on needs to be perfectly level, the mount itself needs to also be level on the pole both ways. Sure, you can most likely get it to work on c-band even just messing around, but that will just make you frustrated eventually and that wouldn't be a good thing. C-band is much more forgiving than KU, but if your tolerances aren't nearly perfect, you won't be happy with your results.
Study those pics from that thread closer, and look at the types of nuts and such used, where they are used, and how things are placed, and duplicate it. If you didn't get nylon inserted nuts for where they are needed for some reason, go to the hardware store and buy them. If you put them in the wrong place, move them where they belong. This is a great dish for a 6 footer, if assembled correctly.