I just bought my tickets from K-State directly, they were kind of pricey but at least you know you'll be sitting in the KSU section and not with the Jayhawkers. Section 24 and 25 on the east side is the visitors section.
One thing to note you; should be able to pick where ever you want to sit by half, hell they might even let you come down on the field and call a few plays. Their (few) fans will be gone by then having figured out that its not an outdoor basketball game. Its too bad too, I was hoping Self might ride out on the field wearing leather chaps again like he did for Late Night Lost in the Phog.