ok, cool. Well, as you're planning, totally look at some run ideas, and see what you can work out (if you're building your own). If you have the money and don't want to build a run, a chain link outdoor dog run works well for a few chickens. I usually put a tarp over the top to keep the ground from getting muddy. Works well for my breeding bantam groups are 4-6 standard. I get old ones off craigslist for cheap and fix em up, though i can build things, it sometimes is cheaper for me to buy the dog run. Chain link is nice and strong, and will keep you dog out. What kind of dog do you have??
oh, btw, i am getting off, i just wanted to say that so u weren't like waiting for a answer or whatever. Feel free to ask more questions, and i will answer them tomorrow.