Frankly, I'm not very comfortable doing it myself. I could probably tell you more if I was able to see Ianto myself for a bit.

Without any firsthand knowledge of the situation, I can only tell you that I think Elashte would probably be a good choice if we had to ask for help. I'm not entirely certain of the strengths and limitations of the various demonic subtypes, but if he's survived long enough to become a Neqa'el then I would think that he would be competent.