Found some GM factory long box sides

[TANDAMAN]

Hello, I recently found / acquired a pair of GM long box sides that had been stored in a dry shed for the last 20+ years. They still have the Genuine gm part# stickers on them but said made in Mexico. They are pretty covered in dust from being stored with out packaging boxes but have no rust and one has a small dent above the gas door but are still in great shape considering. Person I bought them off of said they were purchased form a local dealership for his truck but he never got around to repairing it so they sat. I was Just wondering if someone had any Idea what they might be worth? Apologies for the pics I will take some better pictures of them..