New Chook - Tractor/pen

We recently acquired a new chook-pen/tractor to house our 3 chooks. It is 2/3 fenced with the other 1/3 colourbond. If anyone has any idea whether there are any cheap ones in Queensland, could you please leave a comment on this post. Any feedback will be appreciated. (To leave a comment, click on the "(#) comments" words at the bottom of any post). Here is a photo of it: