I've got a 240z engine... now what?

I just bought a 71 240z recently as a donor for my 73, I have gotten what I need out of it but now I want to either sell it all or part it out. I have the complete engine that I don't need and I'd rather someone else who needs it, have it. What is a fair price to ask for it? I'm not looking to rip anyone off I just don't have any idea what its worth.