Horia,
It's been about two years since I went through training, so I'm not exactly sure about the accommodations...
As for getting CLE, it's our smallest base and very senior, but you can put that as your "number one" choice on your wish list and hope to be put there. If not, you could always trade with someone looking to get out of CLE...realize if you get placed there, reserve might be awhile. To answer your last question, XJT only operates the -145 out of there.
Pm me if you have any more questions