tubular metal chicken run frame (Oakridge RG21)

As a result of needing to move my chickens to a different allotment, I'm looking for a tubular modular chicken run along the lines of the one pictured. If anyone have one they no longer want, I'd gratefully dismantle it and take it away. Partially incomplete or rusted frame shouldn't be a big issue as I'm handy with a grinder and welder.