is there a place that tells me how much a one day pass at the door would cost me?
That information should be up on Fanime's website later this month or early May. The rates vary by day, though, and depending on when you're going, you're (likely) looking at anywhere from $30-35. Saturday is generally the most expensive day (about $35) since it's also the most popular. But just check the website in a couple weeks and that information should be posted.