1. I need to improve my Japanese.
2. I don't know, maybe if I win the lottery?
3. Not yet, but I'll be looking again soon and I'll be looking without benefit of my employer paying my housing. I'll probably need to downsize.
4. Location, price, size.
5. No.
6. No.
7. No problem.
9. No. I intend to live in my own apartment. Though more contact with Japanese nationals would be welcome, it is not not enough incentive to live in a dormitory.