0.9: Well, they could be found when I committed this... not sure what would have changed this. Have you tried forcing them to appear by altering the lua scripts?
1. I don't think so... though you could add that via script, which isn't a bad idea.
2. Uh. Not sure, I think I placed them in buildings when possible. See the script, Im not at the code atm.
3. They walk a big, like normal civs, but not much.
4. Unless someone accidentally kills them in tactical combat, no.
5. No. They look like always.