I don't know if I would recommend Anconas based on my experience with her, honestly. She isn't what I would call flighty, actually she's very tame and human friendly, loves to sit in your lap (and I mean yours or your friend's or their friend's lap, she is absolutely not picky!) or be picked up and have her feathers stroked, but she's very meek with the other birds and was bullied pretty harshly when she was younger. She's reached the age where few are older than her so she finally is more intimidating than intimidated by the majority of the other birds, but her first couple years were pretty tough. But, of course, she's the only Ancona I have ever had, so who knows if that's a breed thing or just her.
I've been very fortunate in that my Australorps are quite laid-back in their personalities and I haven't had any significant bullying issues beyond some hatch-to-hatch conflict between "teenagers" and newly-integrating chicks.
Mine have had decent sized eggs, and they do just fine so far in both winter and summer out here.
You get some pretty brutal summers, right?
It seems to be much harder to find breeds evaluated for heat-tolerance than for cold-tolerance -- though it's a given for anything Mediterranean.