That site is really cool.
I ran a few different scenarios (including a couple where we lose at Northwestern), and I kept getting Michigan, Illinois, and Iowa as the most likely 8/9 game teams. So, I'm guessing one of those three will end up being Purdue's Friday opponent.
I, too, would like another crack at Minnesota --- not so much out of revenge (they earned their W in Mackey, and I don't begrudge them for it), but rather because they're the best chance for a "big" win in the B10 Tournament.
That Minnesota @ Wisconsin game to close the regular season is looking very, very big.