Arrival: In the case of someone having arrived with physical injuries/damage, this would be resolved, so you can assume he has been fixed.
Abilities: Interesting question! His intelligence and recall may stay the same since we aren't limiting any of the geniuses. I would say things like turning on and off the emotion chip and his big on/off button are the same. Things that might be reduced—as I try to remember episodes of Data being hardcore—are areas where he can affect other computer systems. I don't mean simple hacking, but any kind of removing a finger tip and using a special tool, but I'm not sure how well I'm remembering that, and you didn't bring it up, so just try to play within the spirit of that and if you have more specific questions, let us know.
Rations: Honestly, we could go either way on this, so we're going to leave that up to you!
Such rude androids! No, perfectly alright to ask. Let us know if that doesn't answer everything.