For you old enough to remember Traveller - Some kind person has produce a set of geomorphic deck plans for starships and buildings that could also be used for Starfinder.
https://travellerrpgblog.blogspot.com/2018/10/the-starship-geomorphs-book-i f-finally.html?fbclid=IwAR3SwBjfmSDjb0-Sbzo5D_cRUX4GEsm5G6QS73y8kMH5JzYGBQg CEsSBLJ8
Just need to find away to get some traveller style ships into my game
Here, I linkified it for you.