What do you mean by -r9?
Anyway, you can't get rid of the vanilla plants and minerals and such. Replacing them all with Star Wars plants would be a major update, and Star Wars is often vague about its plants, or is shot in actual forests. The minerals would be a similar issue, but easier. Along with the actual modding, it might confuse players to not have the food and minerals they're used to. You could get rid of the "dwarven" tokens on various kinds of alcohol by replacing plant_standard with
this file. Sentient droids behave essentially like extra members of your fort. They can't be given specific labors, but they'll help with tasks when they want and can sometimes* be added to the militia. Nonsentient droids are more like metal animals. They should be useful in combat or as guards, but you can't eat them or anything like that.
For embark, anoobas and Kath hounds can serve as replacements for dogs, loth-cats and tookas are similar to cats, and nunas and gizkas are like chickens. Albino kath hounds are the rarest and strongest variety. I will make them more expensive next update. There are likely other creatures that work in similar roles, but those are the first that come to mind.
You could spend all the points on gonk droids, however. !!Gonking is Fun!!
I'd be happy to help with any other questions.
*Edit, sometimes. Not sure why it's not all of them. Seems only ones spawned for wagon pulling on embark can be added.
**I think I figured it out. They need to be full citizens to join the militia. They might ask to become citizens after a long time.