Getting marriage is good news, not bad news. There are no reasons to delay the marriage because of the transplant center issue. There are two options to deal with moving: finding a good center near you in Michigan, either (1) transfer the waiting time to the Michigan's center, or (2) keep the list in the current center and start a new list in the Michigan center; this way, you have multiple lists. If you want to do the transplant in Michigan, option (1) is the best. If you can do transplant in either center, option (2) is the best.