From what I have seen and experienced, there are no standard answers for most of these questions.
they are making me wait until I am done with my FC-I to get my AMS date, but on the other hand the guy that was selected with me received his AMS date before his physical. I have no idea why.
All flight physicals are given at Wright-Patt these days.
Some people receive their UPT dates with their AMS date and some people get their UPT dates seperately. Again there is really no standard answer.
Hope that helps.