I have a raised bed garden - I use concrete blocks for the sides of the beds. I would like to be able to pen my chickens in a bed and let them eat winter weeds. Then move it to the next one. I am a "older" woman and need it light weight. I am thinking PVC pipe frame that would fit in the block openings with wire over and around and a plastic bin adapted to fit one end for a temporary house to get out of ran or sun and lay eggs. Haven't figured out how to move the chickens yet, since this is in two parts and the beds are raised a block high. I would appreciate any ideas.