Find out what they are sold for at the Salvage Warehouse and then figure if you're lucky you can ask half of the price though they might offer only a third. Also, consider donating to Habitat for Humanity. The tax write-off might be worth more to you.

Here's what they sell for in Chicago at Salvage One.

https://salvageone.com/product-category/elements/doors-hardware/

Thank you BeverlyFLADDeziner