Easter eggers are also another good breed, they are not an actual 'breed' but easy to find, winter hardy, and lay blue,green,white, olive, and brown eggs. They are more layers, not really dual purpose. https://goo.gl/images/y9sbFy
What you'll be looking for is a bird with a small comb, as large combs may get frostbitten (not a serious problem, but can be.)
(much like this:) https://goo.gl/images/uDbVyR
Often birds between 5 and 10 pounds are the best layers. If you want a dual purpose (perhaps you will be culling extra...
Oh, you are not crazy, trust me.
I have been raising a critically endangered breed (Sumatra) while also dealing with foxes, coyotes, skunks, porcupines, ravens, squirrels, mice, rats, bears, cougars, wolves, lynx, neighbouring dogs and cats. And my coops are half a mile from the house!
I also...