In case you haven’t seen Spartalytical’s note in the comments:
Just an FYI that conference tickets have gone on sale before the 12/1 date (tonight at midnight). Nothing is available any longer in the lower section for the Kansas game. I picked up a couple of other games as well and could still get in the lower section.
Link to Men’s Basketball Ticket Page
I just checked and there are no pairs available for the Purdue game. (I think sometimes they hold public tickets for the bigger games until later, though.)
It may only be another click or two away, but here’s what I’ve had bookmarked for a while now. Takes you right to the game you want to pick.
http://ev9.evenue.net/cgi-bin/ncommerce3/SEGetEventList?groupCode=BH&linkID=michst&shopperContext=&caller=&appCode=