I went with an Eglu Cube. $1500 w/ the 9 ft run. I wouldn't recommend it for you as you definantly want more space, but I do recommend prefab. There were three big things for me were the assembly time, ease of cleaning/accessability and astetics(everyone can see into everyone elses yards in my neighborhood). I don't have a whole lot of free time to build, and neither myself or my hubby are all that handy, so the higher price is made up for by the time saved. Two hours seems to be the average assembly time for a prefab, where it seems to be several weeks before most self designed/built coops are complete (judging from some photo gallaries of stages). And with cleaning, prefabs are *hopefully* designed by someone who has a very good grasp of how to keep things simple and *hopefully* save you more time on cleaning down the road.
Also, just because you get their coop doesn't mean you have to get their run, so you could get your prefab and then save some money on the quick-and-simple run.
