Tickets at the Coliseum are $9.50 for adults, $5.50 for elementary through high school. Coliseum box office hours are 10:00 - 4:30 Thursday. Friday and Saturday they will open at 7:00.
You can also buy tickets at any Dillon's in Wichita, but there is a $2.50 service charge per ticket.
I had a buddy that went to Colo State Championships and he said parking was 10.00 with some close spots going for 20.00. He said tickets for all sessions cost him 50.00 total.
I don't remember ever being charged parking fees at the coliseum for any other event, so I don't see them doing it just for wrestling. As for admission fees, is that standard for all the tournaments (I'm mainly Hayes???)