Adding Air to Space OR Making an Etheric Cosmos

[Tompete Kerman]

I'm wondering if anyone has any experience or ideas on how one would go about adding air/ether to the interplanetary zones of the Kerbol system?

Would it be best handled by altering the "atmosphere" of Kerbol? I know this wont effect the celestial mechanics of the planets, I merely want to modify my game in order to try some spelljammer-type shenanigans.

EDIT: I had a thought, about placing an empty pseudoplanet inside Kerbol using Kopernicus, and giving IT an atmosphere that extends out beyond the furthest planets. Anyone with experience in that mod know if that's a viable option?

Edited September 5, 2019 by Tompete Kerman