79 front axle and rear end

[rigid]

Have a 79 3/4 ton frame that I need to get rid of. Rust is the issue. It seems to have the corporate axles and rear end. I need to get the area cleaned up because I'm a pack rat and its a mess.
Obviously everyone wants the Dana stuff, but do these have any value at unless someone needs to replace one quickly? If so any idea on what it would be? Trying to decide if I need to take the time to unbolt it or not.

Thank you