Junkyard F body vs New A body?

I’d say my mechanical skills are competent enough to take these old parts and refurbish them for my car. Spindles are $32 ea, calipers are $20 ea, brake rotors are $15 ea. I would probably do the smart thing and get new rotors and other wear parts. I’m just trying to figure out if it would be better to get brand new parts because safety, or if I can get away with junkyard parts.

You could grab the knuckles off the FMJ and then go a couple of rows over and grab a set of calipers off of a Viper. That is what I did for my Duster.
DSC_3609 (Large).JPG