This popped-up on the home page gallery photos. It was posted in 2006 and I have not seen the OP here since.
But it's a perfect shot of what you're searching for and what to be careful of...
control_arms_and_wheel_002 - Club Cobra Photo Gallery
This one led a tough life. Those chips in the face and web are from hammer hits and it appears to have a curb scuff. Even a lead hammer can do that. It shows you how soft they really are.
I don't think I'd buy this one fearing splits and fractures through the web from the chips. If I HAD to have it, I'd insist on x-ray / magnafluxing.
Caveat Emptor -especially at today's prices.