Late Black Nikon F Film Camera Body Only Not Working

Serial Number: 7326942 Body only. No lens. No finder. No focusing screen. No film door. It shows signs of use. There’s an issue with the finder release button: it’s difficult to mount and unmount finders. If left alone for a while the mirror gets sluggish. When last tested it fired at all speeds and speeds sounded good but there’s no guarantee this will be the case when the camera is received. The film advance at times is slow to return to position.