Heightmap Request

[Hallucination]

I am looking for someone who would be willing to make me a heightmap of the Campagnia region of Italy. There is a terrain/topography map here for reference.
I would be extremely grateful to anyone who could do this for me. I am able to make the mask myself, and the rest of the map will be easy. I just cannot do the heightmap (Trust me, I tried.) Working on a grayscale canvas with no extra layers allowed is far too complicated for me.
Please message me the heightmap when finished! Let me know you'll make it to avoid getting multiple people!

P.S: The map will need to fit a very large scale, height will be adjusted as needed, and adding details to the land would be excellent!