Did you search in Runner Companion? I vaguely remember having read something about instruction in there...
Sorry, if that doesn't really help you, but I don't have that book near me right now.
On the other hand, Tutorsofts come at rating x 500

, so I imagine, that a living instructor will charge roughly the same. Probably more, if you are a single student, and certainly something extra if you want to learn something illegal like Forgery or Heavy Weapons.
Also, learning magical skills (or technomantic) will cost more, as these can't be learned with Tutor softs.
-CJ