Short Ver.: Where the beepers do you get this stuff!!!???

Hi. I want to set up a handline for fun, also when I cannot be bothered setting up a rod. From lots of searching around I found the general options were straight high test mono line, nylon or other rope backing to mono/leader and less commonly YGK Super Top or Sufix K-Braid. Tried 40lb mono which I hated as the line came off line like a slinky. Rope option would likely help in the tangling problem but I seriously want to try some YGK Super Top or Sufix K-Braid first. Found YGK Super Top at Bluewater, and Oceanside Tackle and Marine(Asked, none of either currently). Sufix K-Braid is literally nowhere to be found online. Why are these 2 products so hard to find online? Is it because the main target is commercial fisherman(For winches) and sold in more commercial fishing supply stores instead?