I just added a new entry to the FAQ on the private lesson page that should answer this question in part.
Ah, what the heck, I'll answer it again. Obviously, something is not clear if we get this same question over and over again:
Like a teacher from a local music store, you pay by the hour (or 1/2 hour). You can ask whatever you want. If you want to have a difficult guitar solo transcribed exactly, it is going to take a while. If you just want the basic chords of a song, it shouldn't take long at all.
That includes 2 guitar parts, converting open tuning to standard tuning (if it makes sense), and the teacher can try to get correct amp settings for you, but that often something that takes a lot of research to get exactly.