I was thinking Samavian Orthodox! And then getting really interested in the potential issues of the Rat being (nominally) Anglican. I don't think he's a church goer or sees it as a big deal while in England, but there would have to be some negotiation - would he convert to become more superficially Samavian? Or would he cling to Anglicanism as a remnant of his mother and his country? Would he not care at all? Would that be a problem? Do the Samavian nobility expect at least an outward show of religiosity? SO POTENTIALLY FASCINATING.

I vote distilled liquor! Maybe made of some kind of mountain berry.

Also saw your comment about joint worldbuilding brainstorming! That would be so cool.