What's it worth? 318 w/some performance parts

Anyone notice the break-in grease on the cam and lifters or the surface rust below the plugs. These heads look like they were hot tanked at the least and installed and looks like the engine has been setting for a while. The header bolts being bare metal have enough surface rust for at least a few years of humid storage. Consensus; the engine is an unfinished rebuild, I would look at it for its parts value and without taking it apart consider the internals as used.