My S is just about to finish getting a dual degree at UM, one more semester left, in cello performance and math. He was able to schedule his academic classes on central campus so that he only had to make at most one trip there a day. He did not find the travel between campuses to be a big deal or overly onerous- YMMV. I won’t say it was easy but it has been very doable for him. When the 2nd degree is in something that has a lot of labs to schedule that is going to be an extra factor that makes it more difficult logistically. He jokes that he should graduate with a 3rd degree in scheduling logistics 
Lawrence loves multi-interested students and offers them true support.