Wind Erosion / Sand Dunes

I’m trying to do a massive terrain block (320km x 320km) which is predominantly sand dunes.

I found an example on the forums where someone uses Gradient along with clamps to reproduce wind erosion, the only issue I’m finding is the limitation of the gradient.
Gradient is only 256km Max. So I end up getting weird anomalies in my results as it does not cover the total land area. The only solution was for me to scale down my original terrain size to 160km

This is my reference

Does anyone else have a good alternative to reproducing wind erosion? I’m still learning world-machine, it’s quite the powerful tool. Just need something to create wind erosion and sand dunes from different angles.