I was working on implementing a gradient texture with a noise texture, but only wanting the noise texture to effect a certain masked out area, I don't want noise texture effect in the top or bottom of from the border, I want them to be gradients, but just on that edge I want the noise/distortion effect, I have current node setup:

[![enter image description here][1]][1]


[![enter image description here][2]][2]


  [1]: https://i.sstatic.net/Ge20C.png
  [2]: https://i.sstatic.net/ffVAT.png