I'm planning to fly from JFK to Berlin, Germany (TXL). I will be ok going to Berlin for luggage but returning I will have take an item that's about 75lbs (and I can't split it into a separate bag either). What's the best airline to fly that will allow such overweight luggage? My boss is ok paying for the overweight luggage as long as I can take it with me. I did some searching and Delta and AA websites both state no luggage over 70lbs. Any advice would be appreciated. Thanks!