Guys! This was such a pain!! OUr vet said that our dog had great breathing and "should be fine" but we were just too scared to risk bringing him over, regardless of the weather. We went ahead and flew with him to France and then drove across to England. It was incredibly nerve wracking, since we were flying with AirFrance, and our dog is way over their weight limit. But they were really nice about it, and no one said anything while reviewing his documents... But I was prepared to have to find another way. Thankfully, everyone is here safe and sound! Thanks!