I do not have aproblem with them be skittish. They probably aren't as tame as the other breeds you mentioned, but I don't spend alot of time babying them.
As long as it is still in the hull(known as rough rice) it is OK. It doesn't offer much nutrional value. Mostly used in feed just as a filler. There are thousands of acres of rice around where I live.
I ordered 25 ISA Browns from them a few weeks ago. Chicks were healthy and are doing good. Mine were shipped priority, but I am way closer to them. They are not a hatchery themselves.
I have had a Dickey for 4 years now and have not had a problem. Get the automatic humidity system with it. I have hatched numerous types and of eggs in it with no problems.