I've never seen the ai willing to join in for an offer at all similar to what they regularly offer, even if you are asking them to join in on taking down zombie hitler it's going to cost you a ton of stuff.
all together it kind of adds added spotlight to how they value military ships:
- ai to human: "that tiny hull with no engine & outdated weapons in exchange for 43542364365436543 credits... I don't know, it's almost good enough
- ai to human:"I'm offering this trade 238 credits for your top of the line cutting edge hull with cutting edge galaxy leading engines and weapons and armor... this seems fair"