Reasonable price for kelsey hayes disc brake setup?

I gave $350 for a set 8 months ago and $150 for a set with a loaded 340 K frame 4 months ago. It all depends where you get lucky enough to find them and what part of the country you are in. Core value on each caliper is nearly $60 now at Rock Auto.

The price of scrap cars is taking some of our parts out of the market because the scrappers just have no idea that the parts are worth anything.