As Russian, I first think of "American" tourist when I have to imagine some stereotypical tourist. I see lots of Asian tourusts, but they are always in groups and I can't imagine an Asian tourist that is travelling alone.
But I understand you.
BTW, sometimes I think, that Pratchett imagined Twoflower before his country, and he is more like "American" one.
So this is RINCEWIND? Really? Not kidding? I thought it was someone else, maybe the bursar... =/