"I'm not sure what protective spells you have on the school now that things have changed, so on getting the dragons out - we'll need a way through if that's even an issue any more, and we need to make sure all the students are of course kept away, and I don't want to bring the necessary keepers onto the school grounds without telling you first." Charlie understood the feeling of intruders - he'd been dealing with it enough with the dragon camp, and he could only imagine that Snape would feel the same way about Hogwarts in general.
"The school is, of course, more than welcome to any material the dragons have left behind in the last several months." Charlie assured Snape. "However, once we've moved them, any materials the dragons shed in the future is going to be used to fund their housing." Charlie shrugged, he could understand how Snape would love to have all the ingredients and things that a group of six dragons would create, however some things just weren't a possibility.