Good advice. Personally, I always like to see complete groups sold as complete groups. So the hubs are an integral part of the group and it would be nice to have them together.
Putting the parts on a bike might actually net you less than you could have gotten separately. Complete builds never pan out the way we think they should. Well, they can if you find a motivated buyer.
Anyways, I agree with advertising here on the forum or on Craiglist or similar with the complete group and some nice photos.
Other than that, another way to maximize the parts value, if not price, is to consider trading the parts (which you don't need) for something valuable that you do need. Just a thought.