I am looking to build a chicken tractor this year, and I am the kind of person that needs to use detailed plans: I don't do too well "winging it." I am having a hard time finding plans, and was hoping some of you wise folks might be able to point me in the right direction. Free plans are fine, of course, but I am more than willing to pay for plans. I did a search of past threads here, but mostly found posts asking about free plans. I am looking to have a flock of 4-5 hens, and would like a tractor-style coop that I can move about the yard. They will spend some time ranging in our fenced yard (standard fenced city lot) but will need to spend some days in the coop, so I don't want a teeny one. I live in a mild but rainy climate, so a covered run is a must. I liked the look of the Garden Ark: http://www.thegardencoop.com/ But I was hoping for a bigger coop so I can have more than the 3 hens that coop can hold. I'm open to many other styles of portable coop, though! Thanks for your help!