I'm not sure exactly where they sell the tickets on game day, but you will have no problem getting in. You might get "better" seats by buying your tickets early, but there's really not a bad seat for Blue/Gold.
Sorry to pile on the questions for you Jigga, but has there been an official announcement that the game will be Offense vs. Defense or is this just your speculation? I agree with you based on the number of bodies, but I was just curious if Charlie or anyone else has said anything to confirm this sentiment.