Well thanks to
TtTOtW, I was able to get the expansion!
And with that, I decided to do a mock-up of my current module, I truly launched the 7 modules up in my "Delta Reality" world tho, I was using my "Sandbox" world for this one.
I need a cargo bay up next, and a work drone to move modules with no rcs.
Then add the shuttle if it looks good, then act that plan out to the other legit world