My vote is for getting the chickens. I had two ladies on my back porch because I wanted fresh eggs and they were not legal in my area. I also had two rabbits for the great poop (we had a very large garden). There was no odor and no fly problems. I did have them in a screened porch though. I used pine shaving and cleaned their cage daily. I put a litter pan under their roost which helped to catch a good portion of their poop, at least at night. They had a pan with sand for getting a dust bath and I gave them greens and things from the garden along with their regular food. They were the bottom of the 6' x 3' condo with the rabbits above. I had the chickens in the top, but they did not seem to like it there, they were much calmer at the bottom where they were entertained for hours by the bog. I named one Squawk because she was so noisy the other one was Goldie of course she was a well behaved and quite Buff Orrington. The noisy one was called an "Easter Egger" by the person who sold her to me. If I had to do it again I would have gone with two Buffs because of their quiet disposition.
We have since moved to a place where it is legal to have chickens. I now have a respectable chicken coop with an automatic watering system (thanks to other posters ideas). We have 24 hens a mix of Black Java, Blue Andalusian and Russian Orloffs. I had to give away my other two ladies when we were selling the house. Somehow we did not think that chickens would make a great addition to our staging efforts. Turned out the folks that bought our house would have loved to have chickens... who knew. I love having chickens around, they are quite entertaining. We are working on getting our 2 acres cross fenced so they will have an acre to forage on. They have a fenced area attached to their coop, but we would like them to be able to move around more and get more of their own food and entertain themselves. BTW never let chickens get bored, they can really get into trouble.
For what it is worth that is my two cents on the subject.