What's it worth?

I am removing a running /6 and 3 speed manual trans from my 69 Dart and need to know what a fair asking price is. Will include everything from air cleaner to oil pan, starter (looks new), and trans. Motor and trans are in good working order and are from a one owner car. The vehicle these will be pulled from has been garage kept and everything well maintained. I'd like to put these items up on craigslist so they are not taking up space in my small garage. Thanks in advance for any help!