We've got two flocks of 40, each with their own house, and each with access to three paddocks around which they are rotated (so 6 paddocks in total). Each house has three pop-holes, so all we need to do to move them into a new paddock is open a different pop-hole in the morning. Rosemary knows the details of the rotation and the paddock sizes, I'll add those once I ask her.
It's also our new orchard, so we've fenced it with deer netting. The total cost of the fencing materials worked out at around £2 per meter inclusive. We've used a light top wire and bottom wire, 2.4m machine rounds every few metres, netting attached to machine rounds with battens, and ringed to the top and bottom wire. Bottom wire is pegged around the perimeter.
I'll post some photos later, and I've been meaning to write-up the whole setup as a series of TAS articles - using the same area for the orchard and poultry means we get much better use of the land, and makes it easier to justify the quite extensive rotation we use.
HTH.