I used a design I found on YouTube.com
How to Build a Hoop Coop, poster is Square County Homestead.
I built it myself, so not complicated and muscle power not needed. Like other hoop coops, it is open at both ends so lots of ventilation. Right now one end is partially blocked. The other end faces a sold wood shed, so there is a wind block. It is very light and easy to move.
Cost, $155 This includes the fee for having the PVC cut. Add for the tarp. I also recommend using pieces of rope over the top and tied to either side. This keeps the tarp in place and strong wind will do less damage.
He puts the tarp at one end and uses the excess as a wall. I have a tarp over the entire length with only a few inches of excess. Mine is not being used as a portable coop, it is being used as the stay in place coop, but it will be easy to move in the spring when they don't need a wind break.