don't know if you were able to find a host yet. If so, great! If not, then maybe I can help you. It all depends on you. You write that both of you are very open-minded. How far does that go? As you can read on my profile, I only host people who want to join my nudist lifestyle, which means who want to be naked in the house just like me. For many people it's not a problem, for others it is. In general guys have less problems with it, but I can understand that you will not like your girlfriend to be naked in front of others. I had couples who had no problem with it, but others declined because they estimated that nudity was something private. So up to you and your girlfriend to decide what you do.
Just let me know what you decide
juj