As far as I have found...selling them as pullets or roosters seems easiest.
I put an ad on CL for pullets and roosters, sexed already, and had them ALL gone the same day (over 50 chickens!)...including ALL the roosters!
I did the same thing with straight run...and sold a handful.
If people know what they're getting they are more confident about it. Some folks want eggs, some folks want meat/guards...and prolly fighting ones, but I do NOT sell the roos like that. Theres a big population for that kind of thing out here, though, and I am merely acknowledging it.
I have an old man down the road who gets first pick of my roos...he LOVES eating them, and I usually have some pretty ones for his fly-tying hobby, too.
I have not been able to sell eggs yet...my chichkies only JUST started laying on Easter, and today I have five eggs so far when usually I was getting 1 or two!
My lazy chickes are getting ready for their egg-laying machine lifestyle! YAY!
I WILL be selling eggs, just not quite yet. Once they start laying more than I can eat a day, then we're golden.