In the archive, the image titled “importand” shows the render settings (Render Setup F10).

The dimensions were not changed using scale. The maps are configured through UV channels, so there is no deformation.

https://trade.scottgroupstudio.com/products/aviation/W97204?back=eyJDb25zdHJ1Y3Rpb25zIjpbMF19 

Name: Mondri Grid
Export: FBX, OBJ

Dimension: 1)300x400
2)200x290
3)160x230
4)80x150

Polys: 40256
Verts: 20956