Do you currently still have, or in the immediate future will have electricity on your property? Aside from other comments made already, to ease your mind and further protect your chickens, you may want to install an electric fence around the coop and run. If no electric, you could get solar. It's just a bit more expensive. 2 miles is a short drive to visit your chickens multiple times per day. At the very least in the morning to let them out end of the evening to put them away. And although I try to avoid this, there are sometimes several days in a row when this is all my chickens get to see me. And they seem as well adjusted as chickens can be. Always, always happy to see me.