I make most of my money off firewood by buring it in my stove.
On a serious note, there are a lot more firewood producers around you than you might know. There are several firewood sellers in and around Asheville with big processors and selling Tractor trailer loads of wood.
Here is the one big problems I think you might be overlooking. That is big wood. Tree service wood always has a lot of big wood that just wont fit thru a normal processor. Also, smaller limb wood doesnt work well in processors as its usually crooked and wont feed well. What this means is there is a lot more labor involved processing this type of wood. Most of the firewood producers that buy their wood by log truck loads direct from loggers. The loggers know old joe producer cant handle those big old logs and only brings in the smaller stuff to sell for firewood. Old Joe doesnt want those little limbs either. This means to you that you will need a normal type wood splitter and someone to buck the wood into splittable sizes. I have split 40+in dia wood with my splitter and I can tell you a round that size will produce a lot of firewood. I can also tell you I can split a equal amount of wood, and its a whole lot easier to handle, if I stick to smaller wood that doesnt have to be resplit several times. finding someone to saw and split wood in the $8-$10 wage range, might be a problem. At least finding some one you could depend on and willing to work that hard and that cheap might be hard to find and keep.
I personally wouldnt worry about trying to store all that wood inside. Process it outside and pile it up. Once the wood is seasoned, then you can move it inside. A skid steer or tractor with FELworks well for moving large piles of wood. I let mine hit the ground and then use the tractor to pile it up. When I get to big a pile to work around, I then just scoop it up and carry it inside the shed and stack from the bucket.
The market around your area for firewood is fantastic. Grovepark inn likes to buy 4ft lenghts and will pay a premium for the wood. Seveal other places do similar. That is the market I would try to capture. The old guy over in Enka/Candler (old WNC pallet company) runs two processors. One is specialy built, by biltright, to split 4ft lengths. He has a set of scales he weighs truck trailer loads in and a knuckle boom to unload the trucks and sort the wood. Of course the really good wood goes thru that 4ft splitter. He also has a kiln, he has to because he ships truck loads out of state. He tried to sell me his business a few years ago as he was in his late 70's then and wanting to quit. I dont know if he is even alive now. I suspect his gandaugther and her husband might be running the business now as they both worked for him back then. I do know he sold wood year round and he even had a cover to work under when it was raining. There are a few more folks around that also run processors and produce lots of wood, most try to sell local to the average firewood burner. Some even do specialized splitting for those folks that use OWB and like their wood long. Most of those guys own homemade splitters built to handle longer wood than the standard 24in lenghts most factory splitter handle. I havent worked around that area in a couple of years, but when I was there, I would see all kinds of firewood operations setup on every back road and I talked to a lot of those people. I know then, and know of no reason for it to have changed, firewood is big business in your area.