Kelsey Hayes SBP disk break set, what's it worth

Check the mechanical parts for sale section and you'll see an example of what a fully rebuilt set are going for, and you can compare what you've got to that. He's selling his for $900 with a lot of new parts. A few years back I got a set, sans dust shields, for around $150, but I needed new rotors, calipers and pads which were fortunately pretty inexpensive at the time. Relatively inexpensive, that is.