Okay, let me say it here too, cause I already got a DM (I won't say from who), asking the same thing again.
All Eternia 1 quicksaves are compatible with Eternia 2. So, whatever interplanetary or interstellar space station or base, or awesome mothership or mission you have, will remain in the same position once you've updated Eternia 1 to Eternia 2. You WILL NOT lose anything!
Basically, all you have to do is This (thanks
TtTOtW, I copied-pasted your post):
1)
Delete the contents of your Planet Data and Textures folders.
2) Copy the new data over.
3)
Move your Persistant.qks TO YOUR QUICKSAVES FOLDER.
4) Open the game, build any damn thing your finger falls to, and launch.
5)
Load your Persistant.qks from the load menu in game.
6) Exit game from menu.
You are now back in business.
Anyway, if you still have any questions, once again, feel free to ask.