If they put their faces up at imminst.org, they likely post at imminst.org. I haven't checked that link out lately, but you'd have to get to know them one at a time. Imminst.org does a pretty good job of providing links the person's background. There's no reason to invite them, wholesale, here, because they have plenty of talk space over there. In this case, I think you should log in to imminst and start a new thread in Kliens cryonics section. They're much more likely to respond to your question that way.