Hello! We are newbies to the backyard chicken game, and in need of a coop for our 5-week old chickens. Due to our yard, existing sprinkler system, and city location, we are planning on utilizing a chicken tractor, rather than a permanent coop. Since we do not possess the talents or equipment necessary to build a chicken tractor of our own, we have been planning to have one built for us by a local carpenter. Initially, we gave him plans for a more rectangular structure, but the cost to build was a bit of a sticker shock. We have seen the A-frame style chicken tractors or arks for a lower price and are wondering if anyone has utilized them.... We are in MN, so our winters are very cold. Per what we have seen on craigslist (regarding a similar style tractor), it can be quite weather tight for our chilly winters. Anyone have a portable A-frame style tractor (with coop space on the top, the bottom being the run area open to the grass)?? Or will I wish we would have just spent the money to build the rectangular style portable coop/run??? Thoughts?