Hi Ritn,
Setting aside the horrible, Horrible inefficiencies and poor coding practices in your mod, and how there are too few people using the mod to really consider large scale changes...
Spaceblock map generation stuff currently only applies to nauvis for compatibility with Space Exploration.
But i can foresee other mods that may want to expand spaceblock and for it to have multiple space surfaces.
So to do this i have added a pattern to the chunk handler, so that the surface must either be nauvis, or the surface name is prefixed with "spaceblock_" and this will be available in the next update.
If you would like to discuss other methods, such as using remote interface and managed remote tables feel free to join us on discord.