I don't think I have ever seen a story on this site involving speculums at all. It could happen, I suppose. It may have happened nad I just missed it. I don't really know.
What I also know is that many places that will bikini wax a woman will wax a man, too. Now, from what you have said, he wants his "chode" done, too (the area between the balls and asshole). Is that right?
If so, many a waxing techinician will be willing to do it, but they might require an extra fee. Hard as it might be, asking around would probably be the easiest way to go.