And I think I've figured out my mechanics! Or at least a general concept of them. Need to do a SHIT-load of prototyping and development work. This might be too ambitious.
But I'm the girl who tries to play a symphony flawlessly on an instrument the first time i pick it up. I've always been the "All go, no quit, go big, or go bigger" kind of person. Did 7 piercings AND my first tattoo all on the same day. Doing AAA mechanics for my first (solo) game is totally how I do.
Game project update!
So, just from a cursory review of options, I think I'm going to switch from Godot to Unreal. There's a bigger library of free assets, and I'm going to need to use as much pre-existing work in order to get to prototype phase quickly. If it turns out I've got something actually worth showing to other people, THEN i can start looking for unique, purpose made assets. until then, its time to do what I usually do: Reuse, remix, repurpose.