I actually just checked and it looks like Delta has both my flights in Terminal 3 (they also use 2 and 4, but only for specific things which do not include Boston or Minneapolis). So now I just need to figure out how large Terminal 3 is, in terms of maximum linear distance I will need to cover.

Feasibility of the connection is kind of no longer an issue, for good or ill - already booked. At this point I am just trying to figure out whether I can take the "rolling suitcase" hit to my walking speed. And from what I can tell (airport map does not give a scale, argh), it is doable.