I have one pair of early non hub centric front rotors. Light surface rust.

Three late rotors. They appear to have been installed as they have bearing races and grease but not wear on the surface. One late rotoer not cpictured .
Cleaned up a small area on each to show the condition.
The new cost is $75-80 each so I figure $50 a pair plus shipping should be fair. Shipping from 92505. At most I can ship in flat rate USPS boxes for $18 each so is will still be a savings over the new cost. Pickup in Riverside CA 92505 is also an option.