I remember you and am so sorry to hear you are feeling poorly. As you know, Beaumont and U of M are nationally ranked facilities with excellent reputations. It would be a long drive for you to go to Beaumont for regular care if you are in the AA area...going for a consult is one thing. If U of M offers a comparable doc that you like, it may be easier for you. I did my BC tx at U of M (live in Royal Oak) but because the frequency was only once every 3 weeks, with the exception of a couple appts at the beginning.
If it were me, I would get copies of all the scans, reports, etc, and keep my own file. Go see Dr. Margolis, and then consider the U for a second opinion...or even St Joe's has a good reputation too. You may want to get copies of those mammograms and stuff from back then, just to have a complete file...and in case there is a connection.
Please keep us posted...