That's insane for something you could turn on a lathe from a piece of hex stock.
Heat treat isn't too expensive if you're not in a rush or need it done alone.
I'm betting that price is figured on having one made in a machine shop.
While I haven't seen one over in U-techcenter, I have seen a couple of Z bars and release forks lately.
Jim,
Lil'Red is a '87 F250 HD, 4.10's, 1356 4x4, Zf-5, 3G, PMGR, Saginaw PS, desmogged with a Holley 80508 and Performer intake.
Too much other stuff to mention.