Way ahead of you. Already done it. It was just a case of a small edit to the two files controlling rock and soil. It seems the default atmosphere file is already altered for infinite gas. But since there is already a mod out there that does it I never bothered to publish it.

Infinite resource version now available. Link is in above description.

I know this is an older mod but can you add in the mod that keeps local resources from running out to this mod (like a 2 in 1 thing). This will keep you from having to move every few days (I play 1:1 time scale)

Most mods don't work well together with Knightsleeper's. He may already have incorporated this one, or something similar.
Or perhaps you have exhausted local resources and need to move location.

The mod stopped working halfway through my game for some reason.