Size-wise it should work for what you want to do, with bantams and that double for full sized. In West Virginia, you should not need the heat lamps.
The things I'd consider.
I'm not sure you have enough height to put the roosts higher than the nesting boxes, but maybe. They like to roost on the highest thing available. You don't want them sleeping in your nesting boxes since they poop a lot at night. That does not make for nice clean eggs.
Do you have good access to get in there to clean? Could you retrieve a chicken that doesn't want to be retrieved?
Is the material and construction sufficient to keep raccoons, dogs, and coyotes from ripping their way in to the chickens?
I think you will find that the poop will not go through that wire on its own, but they will walk on it and scratch it and the poop on the wire section will fall through. How easy will it be to rake the poop out from under there?
How big are the openings in that wire, especially in the bottom? My brooder and grow out pen have 1/2" hardware cloth bottoms, and I have never seen any feet problems due to that. I'd be kind of uncomfortabel with the holes any bigger. My concern is not the health of the chickens feet, but that a raccoon cound get under there and maybe reach through the wire to get parts of the chickens and pull them through the wire to eat, especially feet and legs.
My chickens don't like wind. The cold does not bother them and some even get used to snow if they see enough of it, but they don't like wind. I'd consider blocking off a side in a way to create a wind break, at least from your predominant wind direction. My coop and run are totally different, but the gate and coop make a nice corner out of the wind that they like to hang in when the wind is blowing. You might need to block off a corner all the way to the ground.
That's about all I can come up with right now. Good luck!!!
