wow, that's a heavy box. I think everyone charges $200 for a bicycle, and then 200 euro back. We flew air france, where bikes travel free, but it turns out that Delta charges you when they fly Air France flights. Being a jerk about it in Philly meant they comped that flight, but the French Delta employees were having none of that, and it was 200 euro or no bike.
I borrowed a case and there was a little bit of moving stuff between the bike case and a suitcase. don't remember how much of that was weight and how much was space. I think there ended up being clothes in the bike box and bike parts in the suitcase. I definitely had a scale in the garage while packing