Red, that small coop could very easily be converted into a coop that would most likely be large enough for them. Then, with your added run, you would be all set for space, AS LONG AS you don't add any more birds. Depending on your location, you could even use tarps to close in the whole coop. Better yet would be to put plywood siding on it, cause that will increase the strength of the building. Surely, you must know someone who has the required tools and skill set? Perhaps you could barter services, garden produce or eggs to get the panels cut to the right dimensions. Or, you could go to Harbor Freight and buy a skill saw. I'm a 61 y.o. biddy, and have more fun with shop tools than I ever do with indoor stuff. And, I still have all my fingers and toes. If you do close in the coop, remember that they need, must have, (not optional) lots of ventilation. If you oriented the coop so the open end of it faced south, you could even leave the entire south end open. Plan on allowing approximately 6 sq. feet of open space for ventilation. In order to get good ventilation, you must have at least 2 openings so that air will move into the structure, and still have somewhere to exit.