Private
To be honest, that is something I still don't really understand. I use more magic on a daily basis to run my estate than you do your house. The main difference between us is that the average non-magical person looking at my house would not know it.
You mean the vampires, weres, and other non-human? I know some of them and had intended on extending invitations. We can sit down later to go over menus and music.
My suggestion is that you not refer to yourself as a traditionalist. That name developed a less than wholesome connotation between your time and mine. I've come to avoiding the words muggle and muggleborn, and of course mudblood is a perjorative we've done our best to completely eliminate.
The only thing I would ask is that if you do find a way to return to your time, you take me with you. I have done a thorough study of all the Wizarding Wars, and would do whatever it might take to keep them from happening. I couldn't expect someone of your gentler nature to approve, or even, perhaps, understand, but I've been on the front lines before, and will go there again if necessary.